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FAQs about Yellow Tang Disease/Health 10

FAQs on Yellow Tang Disease: Disease 1, Disease 2, Disease 3, Disease 4, Disease 5, Disease 6, Disease 7, Disease 8, Yellow Tang Disease 9, Yellow Tang Disease 11, Yellow Tang Disease 12, Yellow Tang Disease 13, Yellow Tang Disease 14, Yellow Tang Disease , & Paravortex/Black Spot Disease,
FAQs on Yellow Tang Disease by Category: Diagnosis, Environmental, Nutritional, Trauma, Pathogenic (infectious, parasitic), Social, Genetic, Treatments

Related Articles: Yellow Tangs,

Related FAQs: Best Yellow Tang FAQs, Yellow Tangs 1, Yellow Tangs 2, Yellow Tangs 3, Yellow Tangs 4, & Yellow Tang FAQs: Identification, Behavior, Tang Behavior, Compatibility, Selection, Systems, Feeding, Reproduction, & Purple Tangs, Striped Sailfin Tangs, Zebrasoma Tangs, Zebrasoma Identification, Zebrasoma Behavior, Zebrasoma Compatibility, Zebrasoma Selection, Zebrasoma Systems, Zebrasoma Feeding, Zebrasoma Disease, Zebrasoma Reproduction, Surgeons In General, Tang ID, Selection, Compatibility, Systems, Feeding, Disease, Fish Worms Diseases,

Surgeonfishes: Tangs for  Marine Aquariums
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by Robert (Bob) Fenner

Yellow Tang Sick 8/30/10
Hello and thank you for taking my question.
I have a Yellow Tang that has been with me for close to 7 years. I transferred him from my old 40g tank to the new in-wall 180g (220 total system volume) a few months ago. He was doing great until a couple weeks ago when his interest in his normal daily Nori waned. He's never taken to foods floating in the water column such as Mysis, Rod's Food,
etc... He only really cares for Nori.
<Mmm, needs more nutritionally>
Along with his lack of appetite, I noticed his gills were irritated and he is breathing fast, which is my main concern. He is still somewhat fat but I can tell he's losing weight from not eating. Fellow tank mates include a male Lyretail Anthias, Cleaner Wrasse, Cleaner Shrimp, and some snails. I've attached some pictures for reference.
<No images attached... Oh, I see below>
Thank you for any help you can provide and water parameters are below as well.
Salinity 1.025
Temp 80F
Alk 9.0
Ammonia 0 ppm
Nitrate 1 ppm
Phosphate - undetectable (going through a brown hair algae cycle at the moment)
<I see this... and it concerns me>
Tang 1
Tang 2
Sump Room Equipment
Thank you!
<Well the dorsal fin seems mis-shapen/foreshortened and there is some lack of coloration in the pectorals and elsewhere... this could be due to being confined to the forty for so long... The algae in the new system is my main guess... I think this fish is being poisoned by it. I would be either moving this fish elsewhere or dealing with this algae post haste. Read here:
scroll down to Algae, Control...
Bob Fenner>

Re: Yellow Tang Sick, Poss. BGA involvement 8/30/10
Thanks for the reply Bob. The 180g was recently set up and cycled but is/has been going through it's first major hair algae cycle. Algae poisoning, I've never heard of this?
<Actually, quite common>
I agree the tang was kept in the 40g far too long, bad decision on my part I know but was fat and acting fine even after adding him to the 180g. I have implemented some Mexican Turbo snails that are eating the algae quite well - but at a snails pace.
<Seems reasonable...>
Along with that I run Rox 0.8 Carbon and granular GFO. What could possibly be in the algae that would poison the fish?
<The list of chemicals is indeed long. Better for you to search the Net re>
Is it that he is consuming the algae that is making him sick?
<Not necessarily. Can/could be toxins released in the water>
Like I said, I've tried Nori, Red Algae, Rod's Food, Mysis... but his favorite was always the Nori. Never took to anything else. Also tried garlic enhancement to no avail. Puzzled....
Thanks again for the quick reply,
<Certainly welcome Brett. BobF>
Re: Yellow Tang Sick
It's time to change it anyhow so you think it would be wise to discontinue the GFO?
<Removing soluble phosphate thus is fine as a nutrient control approach in a setting such as yours (sans macro-livestock that is chemoautotrophic)>
I can't see how the Carbon wouldn't help the situation if the algae is releasing toxins into the water column at this
point. Thoughts?
<Good grade carbon can/will help as well. B>
Thank you again,
Re: Yellow Tang Sick 8/30/10
Thank you Bob. One last picture for you. This is taken with the tank lights off but with the camera flash on - sprr. I thought it looked like brown hair algae but what do you think? Link below....
<Quite possibly a Cyanophyte... need to see through a 'scope to tell for
sure... Read where you were referred initially. B>
Re: Yellow Tang Sick
Will do, thanks so much Bob. Much appreciated.

Yellow Tang... beh. 8/2/10
Hi! I've only had my yellow tang a couple of months. Yesterday, I noticed above one of his eyes a dark spot. He was still very energetic and eating. This morning, he is hiding and not eating. Also, he is black above both of his eyes...just a small dark circle above each eye. There is no pitting or streaks or anything else. What can I do for him?
<Likely these marks are either "natural" or resultant from capture, poor decompression process... in either case there is naught to do but provide good care. Bob Fenner>
Yellow Tang Problems
One other thing...the discoloration looks like it's underneath the skin.
Like it's in his head, on the top, between his eyes.
<Is indeed. B>

I think my Yellow Tang is dying! 6/3/10
Dear Wet Web Media,
I've enjoyed your website since I inherited a salt water tank 5 years ago and also a proud owner of Bob Fenner's Conscientious Marine Aquarist. I have a 200 gallon tank, fish only, live rock with protein skimmer. The tank has only 8 inhabitants (yellow tang, dwarf flame angel, threadfin butterfly, tomato clownfish, Firefish, Hawkfish, a damsel, and one fire shrimp) The water parameters are nitrate: 20, nitrite 0, ammonia 0, ph 8.4, alkalinity 300, temp 82, sp gravity 1.024. I've had this yellow tang for 2 years. The newest fish has been in the tank for one year. It used to eat everything (seaweed, flake, brine shrimp, frozen marine mixes, pellet food) but for the last two days it has been looking whiter, the dorsal fins are spiked up, he might be breathing fast but I don't really can't tell, and he won't eat anything.
<This fish IS beat>
The other fishes look fine, and he's the largest in the tank measuring 3 inches and has never been bullied. There hasn't been any new tank issues or changes. I've included a picture. Please help! I'm scared he's dying.
-Sincerely, Gabriel
<Either summat is seriously missing nutrient-wise, and/or water quality has some very bad issue. Please peruse these files:
and the linked files in the series above. Bob Fenner>

"Crew cut" Tang...

Fish aggression in quarantine, Yellow Tangs 5/27/10
Dear Crew,
<Hiya - Darrel here>
I'd read that adding a group of yellow tangs was possible, but for best likelihood of success they should be placed at the same time.
<Yes. Keep in mind that, just as water seeks it's own level - fish find their own place in the hierarchy. In NATURE '¦ the weakest is almost always lost. What we're trying to do is minimize that.>
I got 3 small ones (approx. 2") and put them in a 10g quarantine tank.
<10g is a tad small for 3 tangs of ANY size>

One fish is bullying/displaying the typical signs of tang aggression. The 'victim' just stays in one corner all the time.
<Not unexpected>
I was planning to keep them in QT for 2 weeks, then a 5 minute freshwater dip, then directly into the main 125g system.
<We all have our own experiences, Chris. Mark Twain once wrote "the problem is not that we don't learn from our experience, it's that we learn TOO MUCH. Consider the cat that jumps on a hot stove. The cat, having sat upon a hot stove lid, will not sit upon a hot stove lid again. But he won't sit upon a cold stove lid, either.>
<For me, what that means is '¦ SIX weeks, not two. No shortcuts, no excuses '¦ as Earl Schieb used to say "No, ups, No extras!" SIX weeks. Too many times I've had fish in quarantine until I thought "If he was going to have a disease, he'd have had it by now" only to find that at 5 weeks, 6 days and 3 hours .. I was wrong.>
<<I can see his persona-Ruh self resurrected in some distant future... "I'll paint any spaceship for 9,999,999...">>
Does the stress from bullying justify placement of any of them into the main tank earlier than planned?
<In a word '¦ NO!>
<in two words '¦ NO WAY!>
<in three words .. Not A Chance!>
<in four words '¦ Not On Your Life!>
<I can keep this up all night '¦ but I hope you get the point. NO amount of ANYTHING gives us the right to risk the lives of the inhabitants of our main tank. EVER!>
<If you only have one quarantine tank '¦ then you're that guy. The mythical guy that only has one extra tank. Most of us have more gallons of extra tanks than we have display tanks -- and this is the reason.>
If not, what else would you recommend?
<Two choices. Move the little guy to his own QT tank (and start his QT clock back at zero again!!!) -- or move ALL of them to a larger (30g) tank that has several pieces of PVC pipe and maybe even several pieces of dead rock -- where you can create what is called "visual privacy" for the two combatants: places where they can both exist without having to see the other>
In anticipation of a suggestion to get a bigger sized QT, I'll start looking around for a larger used tank, but is there another solution using my existing setup, such as simply using a tank divider, or would this be too confining?
<No tank divider in a 10g .. but for your 30, 40 or 50g QT tanks {plural} (welcome to the Brotherhood!!!) then perhaps yes>
<That's my 2 cents ... but I'm going to ask the boss if I missed anything. RMF??>
<<Well, I think you've summed up your stance, in, umm, your own usual, umm particular... idiom. BobF>>
Re: fish aggression in quarantine
I appreciate the promptness of your response. At the same time, I must reply to your comments, which at first read seemed at times somewhat condescending and smug. After noticing Mr. Fenner's postscript, however, it's possible that may have not been your intent, but rather, your communicating style just leans towards hyperbole. <<Heeeee! I'll say! RMF>>
<Sorry that you didn't 'get' my sense of humor, Chris. It takes a certain dementia to do this job and mine runs toward weird humor. Mostly I get positive feedback, but Neale Monks does point out from time to time that my writing style doesn't always move to other English-speaking countries and must be downright hideous when literally translated into other languages. Yours is a letter that would seem to support his position.>
While I don't contest that a larger quarantine system and/or multiple tanks would be better, I do take issue with your statement that I am the 'mythical guy that has only one other tank' and that 'most of us have more gallons of extra tanks.' Based on the 13 pages worth of 'Quarantine-related' questions within the WetWebMedia website, it's clear that a great many of the posters have historically used NO quarantine methods whatsoever, much less use multiple tanks. I am sure that you (meaning all WetWebMedia consultants) realize that the people who write to you are, for the most part, not experienced aquarists like yourself, but novices.
<Chris, probably every last one of us has used the "no quarantine" method when we started out. We live and learn. The problem is that Marine Aquaria is both art and science and while we all agree on the science, the art is different between us all. So we get a QT tank and then have an "oops" just like you did and we acquire a second. Then, in the process of something else we see that we should have done "thus & so" and suddenly we have a third. That 'mythical guy' I was joking about was an effort to make you feel that you hadn't done anything wrong -- that we have all followed this same path. Again, sorry it didn't come across>
I agree with you that we in the hobby are custodians of often fragile life forms, and this demands a certain level of responsibility. However, we also balance that responsibility with our own respective individual constraints, whether they be financial, space related, time related or otherwise. The ability to maintain multiple 'spare' tanks is not as simple as you proclaim it to be. Now you may say, 'if you aren't able to provide the extra space/tanks, you shouldn't have bought the fishes.' That I chose to quarantine three small yellow tangs in a 10g tank may not be ideal or proper, but neither was it borne out of complete arrogance/ignorance.
<au contraire. I assumed you made that choice based on the best information available to you at the time combined with the limitations of space and money. Just like all of us>
I opted to do so after reading from Mr. Fenner's The Conscientious Marine Aquarist, page 325: 'Yellow and Hippo (Yellow-tail Blue) Tangs can easily get along on a 10- or 15-gallon allocation when they are very small; the larger species double that capacity." Knowing that this confinement was only for a limited period of time and after reading that excerpt, I felt this size quarantine tank could suffice. If I was mistaken in my interpretation of that passage (i.e. 10 gallons = 1 tang), then it is now duly noted.
<Nope - you probably interpreted it just fine. But see, this is exactly my point about the science and the art of it: Bob Fenner has VASTLY more experience than I do in all areas of Marine Aquaria. Vastly more. His science in unimpeachable but in this particular case, your three tangs stand as living proof, I was right. BUT YET that doesn't mean Bob is wrong. The problem with our art is that MOST small tangs get along '¦ USUALLY in these cases, etc. Tangs act differently as pairs than triads than schools, too.>
<which brings us to the discussion of quarantine>
Secondly, you were quite emphatic ('!') in your insistence on a 6-week quarantine, with no exceptions whatsoever. Please explain how you reconcile that position with page 170 of Mr. Fenner's The Conscientious Marine Aquarist ('A proper interval (generally a minimum of two weeks) must go by in which the specimen in the quarantine tank shows no ill effects of transport or disease. Some public aquariums, with small fortunes tied up in their exhibits, wait four weeks for additional security'); Page 13 of John Tullock's Saltwater Aquarium Models ('I suggest a minimum quarantine of two weeks'); or Page 114 of Michael S. Paletta's The New Marine Aquarium ('Every new fish, whether given a dip treatment or not, should be placed in the quarantine tank for 3 to 4 weeks').
<Here's how I explain it: I've lost fish 5 weeks into quarantine. I tried NO QUARANTINE and I tried TWO WEEKS and I tried FOUR WEEKS and like almost all of us, I've tried "If he was sick he'd have shown it by now" and all of them failed. So I learned from MY experience to use the largest possible tank (lowest possible bio-load produces the least chance for diseases and parasites to reach the other fish) and wait SIX weeks. I then took great pains to quote Twain as a way of admitting that I may have over-learned from my experiences. BUT with that said, I haven't acquired a communicable disease or parasite in my display tank since I started holding to 6 weeks.>
<No matter how you do this, YOUR experiences will vary -- and they'll vary from the documentation and advice you get from all sectors. The science of this is well documented but keeping the fish alive and healthy is also an art and the methods employed are very much in the eye & hand of the artist.>
<In fact .. to go off on a tangent '¦ do you remember the Wizard of OZ? The scene where Dorothy meets the Scarecrow at the crossroads and asks how to get the Emerald City? The Scarecrow says "some people go that way and others go the other way '¦" and gives her every possible answer, which also means, in effect NO answer. The same holds true for this hobby and as newbie, it frustrated the bejeesus out of me when I wrote in with a sick Blue Tang (Ick) and I wanted an expert to tell me what to do. Instead what I got was an expert telling me a bunch of different things I COULD do and what OTHER people do. At the end of three sets of emails, I was exactly like a College Graduate: my head was swimming with knowledge and yet I didn't have the first CLUE what to do or how to use that knowledge.>
<So when someone writes in about QT - I say "6 weeks">
<When they write in about introducing an unquarantined fish - I say NO!!>
<Then - if I think I went too far or over my head, I refer my answer upstairs, just to be sure.>
If this rebuttal comes across as strong, it's only because I want to emphasize that chiding those seeking your help and expertise is counterproductive. I know that most of you are unpaid volunteers and your time is valued. However, a youngster new in the hobby receiving that type of response might easily become disenchanted.
<You could be right. My experience, however has been the opposite - that most people seem to be pleasantly surprised that someone took the time to be funny and personal in the response. A HUGE unknown is also the state of mind of the reader.>
And ultimately, the more of us that experience the joy of responsibly keeping live aquaria and learn to appreciate nature in its different forms, the better. I have great respect for Mr. Fenner because, even with his vast knowledge, he offers straightforward advice with patience and respect
<Yes, he does>
(I personally have had the privilege of his response to some of my past questions), regardless of the questioner's experience or expertise.
<So have I. In fact, it was in such a series of email exchanges that he tricked me into becoming a member of the team (there was supposed to be free food!!!!!)>
Chris S.
<Again Chris, I apologize for my sense of humor. It's one of a great number and depth of character flaws I possess (as my ex-wife could spent days reminding me) but the intent was to answer your question and amuse the reader as the same time. It seems in this case that I did neither very well>
<You'll notice that you're not alone: at the end of my response, EVEN BOB called me an Idiom>

Yellow Tang Trouble -- 05/21/10
Hello all. I have been reading your site quite a bit and getting great information. Excellent site. My Yellow Tang is in trouble. I was treating him for lateral line with Fish Zole,
<Metronidazole... Flagyl generically>
recommended by LFS.
<Mmm... only if the root cause of this erosive condition is Parasitic... rare... will such a treatment avail... OTOH, this compound is very toxic... one dose is all fishes should ever be exposed to... Damages nephric/kidney
components... mortuus est. Instead, water quality, nutritional aspects are almost always the basal cause of HLLE... Read here:
and the linked files above...
and here: http://wetwebmedia.com/metranidazole.htm
and the linked...>
After day 5 he started to turn red so I stopped. No one seemed to know what it was
<What? Nonsense!>
and said it was most likely from treatment.
<Oh, yes... tis so>

So I find a picture similar on your site. Should have come here first.
The Tang is in a QT tank right now.
<Won't be fixed here>
I have been using vitamins in his water/food.
<Good... return this fish to the main system>
Water tests are 0. PH is 8.2 and doing water change daily. Yesterday he did not eat his Nori soaked in vitamins nor the frozen herbivore food and the same for this morning. Not a good sign I'm sure. Is there anything else I can do? Should I start antibiotics again?
Would putting him back in the main tank be a bad idea?
<No; a good one>
He's been in the 10 gallon QT for 3 weeks which may be too small for a long period. Also It seems there is no set answer on how this happens.
<Double nonsense... the etiology of this condition, and its arrest, reversal is well-worked out...>
Water quality, which seems to be great and no problems with hippo tang or bicolor angel. Stress...he was boss of the tank....although I never seen much picking. Voltage....I have heard this one is a myth. Any ideas here?
<... see WWM re>
Thanks for any ideas and have a great weekend.
<Read where you've been referred and write back if you still have questions, concerns. Bob Fenner>
Re: Yellow Tang Trouble - 5/23/10

Thank You for all your help. The tang is looking better since I put him back in the main tank. Less red, eating, and active. I believe this can be reversed with time.
<I do agree>

On another note...I have noticed a new round hole in my live rock that seems to be changing a little each day. Looking around and wondering what would create this hole.
<Mmm, could be a large number of biological predators, or even abiological factors at play here>
Mantis Shrimp has come to mind. Can they really crack glass?
<Reportedly, yes>
Does pulling the rock and putting fresh water in the hole really flush them out?
<I have seen/done this... better with Seltzer... and more fun>
Always a new challenge in this hobby but well worth it. I have asked for your book for my birthday. Looking forward to a good read.
Thanks again.
<Welcome Ms. S., BobF>

I'm not 100% sure this is black Ich.... SW parasite diag. 4/21/10
Hi crew....
I've scoured and gathered as much info as I could about black Ich around the web and especially your site. For starters, about my tank: 125g w/ 60g sump, skimmer, live rock, live sand, above the tank refugium, plus in sump refugium, 2 Koralia 4's, and mag18 return pump. Tank is Fowlr -- but has a rock w/ mushrooms that hitchhiked, very few inverts (5 or 6 hermits, 5 or 6 assorted snails). Tank has been established for 4 months, livestock were moved from a smaller tank. Inhabitants are 1 ocellaris, 1 Banggai Cardinal, 1 Firefish, 3 blue/green Chromis, 1 diamond watchman goby (added him a month ago), and 1 small pistol shrimp -- and our latest addition, a yellow tang, is the reason for this email.
First off, I did not QT (yes, I know, this is the risk I take, especially with tangs). I got him 4 days ago from my LFS. Drip and temp acclimated for 2 hours, and he's been eating clipped algae sheets, Mysis, Spirulina, anything I put in there. He's a small one.
Today, I noticed black splinter looking things...
<... splinter?>
this is why I'm emailing. I cannot get a picture -- he's camera shy.
<You need to practice>
It was suggested in a forum that it could be black Ich. There are only 2 or 3 pictures I've seen (one is that yellow tang image in your site and one is black Ich on a hippo tang),...the problem is, the ones on my tang don't look like spots...they literally look like tiny splinters of wood. Could that be the start of black Ich?
<Mmm, no... perhaps these are monogenetic Trematodes, maybe parasitic copepods...>
I also noticed a very light gash along his side. I'm thinking it could have happened while trying to scratch himself on the rocks to get rid of the parasites?
<Could be>
The little "splinters" look like the gash, except they're poking out a bit....ironically, as I write this, I'm wondering now if this could be the start of WHITE Ich...hrm..so if it is white Ich, would the scratching start before the white spots show up?
<Yes, could>
Ok, so if this is black Ich, how long before it turns into the spots that I see on the fish? Like, what comes first -- the itching or the spots?
<... read here: http://wetwebmedia.com/blkichsympf.htm and the linked files above>
Some observations about his behavior:
- I see him brushing the sand and sometimes the rock with his pelvic fins, like he's just brushing the areas. But I could interpret them as rubbing because of the parasites.
- When I first got him, he paced up and down the tank, pressing himself against the glass..but I attributed it to just adjustment time.
Upon some research on products, I settled on getting Seachem Paraguard. I even spoke to a representative. It's not copper or formalin based.
<It's Glutaraldehyde>
It's invert safe, but with caution -- she suggested a partial dose at first to get them used to it. Since I'm Fowlr, I will just take out the shrimp, cuc, and the rock w/ the mushrooms and put them in a qt tank. I will treat the main tank.
<I would not do this>
I'm assuming the eggs have been dropped and in the substrate at this point, so I want to kill them there, too. The rep and my lfs did warn that with any meds, it will cause stress, so I'm aware that I might have some casualties, but I'm hoping it turns out well. Any opinions you might have with this product are welcome (so far, majority of the reviews raved about this product).
<People have got to learn... as in understand, that anyone writing anything on the Net doesn't make it so...>
As always, thanks for your time, crew! You guys are awesome!
<Is there a chance you have access to a low power microscope? Please search WWM re such use. Bob Fenner>

Yellow Tang Septicemia? Zebrasoma Disease\treatment 4/18/2010
<Hi Ross.>
Thought I would shoot you a quick question.
<Fire away.>
Background: I have been treating my fish for Cryptocaryon irritans in a hospital tank for the last 29 days. Fish include 4 Chromis, 2 ocellaris clowns, a Cardinalfish, and a 6-line wrasse (all quite small - probably 11 "inches" of fish total). Have not seen any sign of the parasite for quite a while now and am just waiting for the display tank to clear out of tomonts.
Just in the last two days the yellow tang has lost interest in Spirulina flakes (normally eats these with great enthusiasm), although it is still eating frozen Mysis. All of the other fish are fine. I also noticed redness in some of the tang's fins and along the lateral line.
<Not a good sign.>
Past lurking on WWM leads me to believe this may be septicemia, but this is my first experience with it.
,Looking at the picture, I would agree.>
I looked for some Seachem Kanaplex, but was only able to come up with some API Triple Sulfa. The box indicates usefulness in treating septicemia, but I have grown VERY skeptical of marketing information and the extraordinary claims on product packaging.
<It can help, but isn't the drug of choice.>
So, here I am to sit at the feet of the gurus. Do you think the diagnosis is remotely accurate (picture of tang attached)?
Also, do you like Triple Sulfa for treating said condition?
<Not the best choice, but certainly better than nothing. Start treating ASAP. Doxycycline is a better choice, but it is only available through a vet or online through http://www.nationalfishpharm.com >
<Follow all instructions closely and keep an eye on water quality.>
Thank you for your help, and thanks for all of the good work you are doing at WWM. What an excellent resource - if only I could search my copy of CMA with the ease of searching WWM... <<Perhaps someday soon. RMF>>
<Thank you for the kind words.>

Yellow Tang, dis., env. and more 4/5/10
Hi, I am writing regarding my Yellow Tang that has red/pink crater like sores on her face and body (I have included pics).
<I see these>
I have a 36 gallon tank
<... too small>
and purchased the Yellow Tang about three months ago (I was told our tank size was adequate for this type of fish by the LFS which I know now is not the case) the water was cycled for 2 years and has about 10 lbs of live rock, 2 ocellaris clown, 2 cleaner shrimp and 1 green Chromis (2 died).
The water parameters today are PH 8.2, salinity 1.24,
nitrates trace amount, ammonia 0 and nitrites 0. About two weeks ago I purchased a coral life T5 light with dual 31-watt 10k actinic bulb and at that time she started racing back and forth in the tank. She has since calmed down but shortly after we noticed the craters ( she did have some flesh colored craters since purchase but they were not very noticeable and only in a few spots) spreading and becoming pink/red in color. A few other problems were discovered with the water parameters in the last few days due to using a versa top
<Really? Due to the aquarium light housing fixture?>
that has been removed. The salinity raised to 1.29 and the temp of the tank raised to 85 degrees (the thermometer was not working properly and was registering 80 degrees).
<85 F. is too hot. See here: http://wetwebmedia.com/temp_faqs.htm
and the linked files above>
After contacting the LFS I was told that these craters were probably due to stress
<Mmm, to a degree likely so... but also water quality, nutrition in the main>
so the salinity has since been corrected and we are slowly trying to drop the temperature. I have been feeding her pigmy angel formula, ocean nutrition formula two flakes, seaweed and frozen seafood mixture soaked in garlic. I also use Kent marine essential elements.
<I would not use, introduce anything... chemicals you don't, won't test for. In other words, I'd stop using this product>
My question is what is she suffering from and is there anything else I can be doing to fight this? Thanks so much, Anthony.
<Please read here: http://wetwebmedia.com/ytangdisfaqs5.htm
and the linked files above, till you understand... and here:
and the linked "Cures" FAQs files above.
Bob Fenner>

Please help my tank! 3/27/10
<Hi there Marilyn>
I have a tank that has been established for over a year, and my son has been taking some of my fish to his newly established tank in Boston.
On Monday I received 3 new small yellow tangs. They seemed to be doing fine, until I got up this morning and checked the tank. Two of the three tangs were dead and the third only lived for another hour or so!
<Look very stressed in your pix... from something...>
Please help me find out what caused their death. I have attached two photos that I took before all three were dead. I had put them in a separate tank and put some CopperSafe in it but to no avail.
<See WWM re Copper use and Acanthurids/Tangs... not a good idea>

Any help you could provide would be greatly appreciated. I checked and rechecked all of the levels in the tank and they seemed fine. And my cleaner shrimp and feather duster are still alive.
Baffled and sad on Cape Cod.
<Please read here: http://wetwebmedia.com/ytangdisfaq3.htm
and the linked files above. Something... chemically, physically and/or biologically did not "agree" with these Z. flavescens. Bob Fenner>

Yellow Tang Ich in Quarantine treatment with CopperSafe -- 02/14/10
I have a yellow tang. Put him in 20G quarantine and he developed Ich within a couple days. I have been treating with CopperSafe
<I wouldn't do this. Read here: http://wetwebmedia.com/tangdisfaq4.htm
and the linked files above>
following manufacturer's directions for 2 weeks now, and all spots have been gone for 10 days. How long do I keep the Tang in the quarantine before introducing to main tank?
<Two to four weeks more... See WWM re. Bob Fenner>
Kevin Melendrez, Ph.D.

Yellow Tang and Salinity/Tang Health/Systems 1/28/10
Hello crew,
<Hello Chris>
Hoping you can help again, I have noticed my Yellow Tang breathing quite fast over the last 2 days, also quite skittish. I have had him 3 months, he is eating well and no signs of spots or any other visible disease, colour is
ok. I have tested all the water parameters today, all OK except salinity which is high, 39ppt. Double checked and recalibrated the refractometer and same. I know this is not good and I don't know what went wrong but am in
the process of correcting this now, silly question I know but would this stress the tang out, clownfish seem ok and they are the only other fish plus
2 shrimp. Many thanks.
<The 39ppt (1.029) shouldn't stress the tang out provided this were a very gradual increase and the tang is kept in environmental conditions to it's liking.
Hawaiian specimens are generally found in waters with an average salinity of 34ppt (1.025). Less oxygen is available the more salinity goes up, so lowering the salinity gradually may help the tang out in that regard providing there is no unseen or seen disease present.
Do read here and related articles/FAQ's for information on keeping this fish.
James (Salty Dog)>
Re Tang and Salinity/Tang Health/Systems 1/28/10
Hello James
Thanks for the prompt reply,
<You're welcome.>
tang has been in the tank 3 months no problems, same clownfish with him, he always seems quite happy playing about with the large female clown which is strange, never shy's away from the glass but is now, nothing new added since his arrival, I am double checking my salt mix which I always have on the go also rechecking refractometer, and starting to lower the salinity in main tank, thanks again for your help, appreciated.
<You're welcome, and you might want to read Tang Behavior FAQ's here. You may find a similar queries leading to more info re.
James (Salty Dog)>

Red veiny lines on Yellow Tang, ref. 1/6/2010
Hey good afternoon,
<Still AM here in sunny S. Cal.>
I have a question about my yellow tang. He (or she) is very active eats well and has all signs of a healthy fish.
<... you're sure you searched this on WWM?>
However he spends a lot of time with his tail brushing sand around and it is causing his tail fin to look a little fraid. The tail also has red almost vain like lines going through it. I have had him now for 2 months and he started off a brilliant yellow and is now got these small red veiny lines in his tail. The tank is fairly new (only 3 months) and is due for its second water change.
Everything tests good. Salinity gravity at 1.023, pH @ 8.16, No trace of Ammonia, Slight trace of Nitrite @ 0.05 and Nitrates have built to 50ppm.
<Way too high, toxic... a factor here>
I did light dose with copper
<? What for? Not in the main display. A mistake>
about 6 weeks ago and that tested @ .25 ppm a week ago. I have heard the positives/negatives about dosing with copper and still went ahead.
<Yet didn't follow instructions before writing us... Please do as a few tens of thousands of users per day do...>
I try to feed seaweed on a clip (which he loves) and I have been mixing up the food base from flakes to a marine veggie cuisine to a freeze dried brine. I'm wondering is it a water quality issue or am I not feeding it the correct supplements. Oh and lastly his tank mates are 2 yellow tail damsels a hippo blue tang (added the same time) and just recently ( 2 days ago) a maroon clown
<The alpha fish>
and a small green bird wrasse). The tank size is 80 gallons and he has had the red veins on his tail now for about 2 weeks, Its is more visual at first sight in the morning. What could this be?
<Read here: http://wetwebmedia.com/ytangdisfaq3.htm
and the linked files above, elsewhere on WWM re NO3... and copper use. Bob Fenner, persnickety this AM>
Red veins on Tang Solved (I hope)
Hey thanks so much!!! I believe my issue is poor water quality with my tang and the red veiny look.
<Ahh! I do agree/concur>
I was able to look it up and once again thanks for steering me in the right direction. Any web-sites that you would recommend for mail order fish?
<See WWM re... my fave is Dr.s Foster & Smith in general>
I live 2 hours one way from closes fish store and its a pain in the backside.
<Wow! I bet>
Nor. Cal., Mendocino Coast. Once again thanks for the direction.
<Thank you for sharing. BobF>

Yellow Tang, QT, hlth. 12/11/09
Hello I have a yellow tang in quarantine, tomorrow will be 16 days and I was going to add him to the main tank.
<Ok, but is generally recommended to QT for 4 weeks, but 2 is better than nothing.>
Well when I feed him today I turned the tank pumps off and when the water was still I noticed what looked like a few specs of dust that were swimming around it was almost like they were moving with tiny tails but they were so small it was hard to tell.
<Possible some sort of microcrustacean.>
At first I thought that's interesting then I thought all <<maybe "oh?" RMF>> no Ich has a free swimming stage.
<Not visible to the naked eye.>
I have not noticed any white spots on the fish and it seems to be doing well.
So I really tried to look him over closely and he does have a few tiny bumps on both sides of his body towards his tail end they are yellow the same as the rest of his body. I was wondering if this is normal or if the whole side of the fish should appear smooth even under close inspection.
<Most likely nothing to worry about and normal.>
I don't like the idea of fresh water dips seems very stressful to me and the fish plus I have read when a parasite is under the skin they do no good any way.
<If done properly freshwater dips are well tolerated by most fish, and can be useful several ailments, however you are correct about them being minimally effective for Ich.>
Would it be OK to still introduce this guy to my main tank tomorrow? Any ideas what the swimmers may be?
<I think it is fine to add, little danger of these "swimmers" being a problem.>

Yellow Tang, hlth. 12/3/09
Hello, I have a yellow tang in quarantine has been there almost a month, since I have had him he has filled out and is looking very good, lots of colour and fins nice and erect he eats anything that goes in, but have noticed that he swims really fast and erratic, shuddering movements back and forth then off he goes again back into a flowerpot, the thing that worries me most is he seems to flick his body against the heater and the side of his flowerpot and then does a lap of honour around the tank at high speed, there are no signs of any spots or marks etc could it be some other sort of parasite or just tang behaviour, many thank,
Regards Chris.
<All reads as "normal", i.e. healthy behavior. Zebrasoma tangs suffer for being kept in small volumes... w/o a sense of being able to "get away". The likelihood that this fish harbours communicable, parasitic disease is vanishingly small at this point. I would pass it through a pH adjusted freshwater bath, and place it in your main/display. Bob Fenner>
Re: Yellow Tang
Thank you Bob for the prompt reply, appreciated, have been reading up on FW dips and other treatments for parasites etc so will now give him a FW dip
thanks again,
Regards Chris.
<Glad to aid your success Chris. BobF>
Re: Yellow Tang, hlth.
Hello again Bob, sorry to be a pest, do you think that one FW dip will suffice ?
and just to clarify you say to put him straight into the display after the dip ?
is there anything I should look out for after the dip i.e. behaviour from the tang what to look out etc, many thanks again,
Regards Chris.
<Mmm, yes... do keep an eye on the fish for signs of oxygen stress... add an airstone/pump if you have one, or agitate the water with your hand during the process. See here for more:
"and the linked files above"... BobF>
Re: Yellow Tang
Thanks again Bob greatly appreciated as you can tell new to marines,
Regards Chris.
<Welcome Chris! B>

Re: Yellow Tang 12/5/09
Hello Bob.
Sorry to bother you again, but just some updates on the yellow tang, taken onboard all you have said about the tang in a confined space and that will be sorted very soon, and have read LOTS of the related articles/threads,
anyway have not yet FW dipped him as have been observing him closely in case I missed something plus need to get out and get an air pump (when I get a minute from work) have noticed first thing in the morning he is very calm
and gill rate breathing quite slow, but after the lights go on and people about it's then he starts his flashing and gill rate breathing increase quite a lot, I guess again stress ?
as if it was gill fluke or something similar would breath rapidly all the time ? I will still be giving him a FW dip,
but would like to know your thoughts on the breathing, many thanks,
Regards Chris.
<Dip and move this fish. BobF>

Re: Yellow Tang 12/6/09
Thanks Bob making preparations now, have RO heating up the ph is low 6.5 so need to bring that up 8.2 both QT and display same so that's a plus, I have bicarbonate of soda , can't find any info on how much bicarbonate to use ?
many thanks,
Regards Chris.
<Mmm... a tsp. or so in a gallon or so will likely do here. Sodium bicarbonate will not dangerously over-elevate pH...
Maybe give a read here if interested in its applicable chemistry:

Re: Yellow Tang 12/6/09
Hello Bob, well the tang is in the main display and is 100% better than he was, he is grazing on the LR eating flake and seems a LOT happier, a couple of photo's attached,
Regards Chris.
<Ah, good. B>

Re: Yellow Tang -- 12/09/09
Hello again Bob, just to let you know the tang is really looking good now
(thanks to your help/advice), fantastic colour and gill rate normal really likes his new surroundings and his tank mates pair of clarkii clowns, the tang is feeding on Nori, flake and Mysis, his only problem now is the greedy female clown competing for food, who I just noticed swallowing a piece of coral shell in a feeding frenzy, do fish regurgitate what they can't digest or does it just pass though somehow ?
<Some of both>
once again many thanks for your help with the tang greatly appreciated,
Regards Chris.
<Glad to aid your successes. BobF>

Having problem with yellow Tang: Newer tank setup: Zebrasoma Systems\health 11/27/2009
<Hi Troy>
I was hoping you could answer a question regarding a yellow tang that I have?
In my 55 gallon tank with live sand and an Eheim canister filter (powerful enough to run 80g) I have 4 small damsels a small Ocellaris clown a Maroon clown and the yellow tang.
<You are going to have problems with that stocking list. Maroon Clowns get aggressive with time, as do the damsels. Further, a 55 is marginal for a yellow tang.>

The water temp has been at 79 degrees and the salinity at 28 ppt and 1.021 gravity.
<Salinity is a bit low - 1.023 - 1.025 is preferred>
The Tang has no noticeable spots and great color, however last night I did a water change (my first one , new tank) he is now laying on the bottom of the tank, breathing hard and not eating.
<Did you test the water after the water change? What about ammonia and nitrite levels?>
His stomach does look slightly pinched. I have had the tank set up for over 6 months and 2 months ago started added fish. First the damsels. then the ocellaris then the tang. The Tang has been the best fish in the tank very active and great appetite.
<They are a very good fish in the right environment.>
I feed Nori, fish flakes (formula one flakes from ocean nutrition) he will also eat freeze dried brine shrimp and frozen Mysis shrimp. It was suggested to me by my local aquarium store to run copper power ( a copper treatment) in the tank
<Ugh.... There are only a few reasons to run copper, and it should never be run in a display tank. It should never be administered 'just because' as it can poison the tank.>
I asked for 1oz per 20 gallons. I have a 55 gallon so I thought safe to put 2.5 oz for 50 gallons. This treatment was done after the damsels but before adding any of the other fish, at least 6 weeks now.
I have had the Tang for 4 weeks and like I said he's been great up until the water change I did last night? I noticed the behavior this morning when I got up? I can easily catch him with the net (no way possible before) and he just is laying on the bottom? Any suggestions?
<Do test your water immediately for ammonia nitrite and nitrate - don't use test strips, they are notoriously inaccurate. Ammonia and nitrite need to be 0, nitrate needs to be less than 20ppm for everything to thrive. Below are some links to some very helpful articles that will give you a point in the correct direction.:
http://www.wetwebmedia.com/marclncompfaqs.htm >

Y. Tang, hlth. 11/10/09
<Hi there>
I've got a mysterious bubble of gas stuck in my yellow tang. I've noticed its formation about 4 months ago, ever since it has been getting bigger and bigger. Now it appears like the fish is going to pop any day and die from it. It's definitely not pregnant, I'm thinking it has some kind of blockage in its intestinal track (not likely) or that his gas bladder is dysfunctional.... any thoughts/suggestions?
<Perhaps the Epsom Salt route. Please search WWM re. Bob Fenner>

Yellow Tang, Crypto, Reading -- 11/04/2009
<Hey there! JustinN here!>
I have a yellow tang in a 55g tank i also have 3 yellow tail damsels, 1 bicolor Dottyback, and 2 scooter blennies. The tank has been up since September-19-09.
<This tank is too small ultimately for the Tang, and likely too immature to support even a single scooter blenny, much less two. The tang has potential to outsize the tank very quickly, and the scooter blennies are obligate fauna feeders -- they will pick your tank clean of their necessary food source quickly.>
I got a yellow tang on October-3-09 and he was doing fine until I had a Ich infection which i treated with Kordon Rid-Ich+.
<Treated in your display? This should be done in a quarantine tank.>
I am still treating with this the yellow tang has no visible signs of Ich but the Dottyback does.
<Is parasitic, and communicable to all fish in a mixed display here. This is why Quarantine is so important.>
I have just noticed (about 3 days ago) red spots on the Yellow tang and they seem to be getting worst by the day.
<Sounds like chemical burn/irritation here>
He looks like he has hole in head. The red spots are at the tail. I can't identify what they are. My tanks recent test values are as follows: Nitrate-30, Nitrite-0, Alkalinity-300, pH-7.9.
<What is your Salinity at? Your pH is a bit low, should be in the 8.1-8.3 range -- Nitrate should be at, or as close to, 0 as possible. The nitrate alone may be enough to cause the burning, but if the Formalin/Malachite
solution is being dosed too highly, this could easily cause the 'burning' as well."
Their is a small electrical current measuring .002v in the tank.
<Most likely unrelated, but there shouldn't be stray voltage in your tank.>
The filtration is a emperor 400 filter and a coral life super skimmer for a 125g tank.
<The main thing you need here is some reading -- your tank is very immature, and is likely still going through its establishing nitrogen cycle. Exacerbating this is your stocking levels -- you have too many fish, far too soon, and the tank is still attempting to establish its biota balance. In addition to this, by treating your display tank with the Formalin/Malachite compound, you are effectively killing all beneficial bacterium/biological filtration available in your tank. These medications treat indiscriminately. More reading is in order -- start here:
http://wetwebmedia.com/stocking1.htm    http://wetwebmedia.com/quaranti.htm
and related subheadings. -JustinN>

Rotting Fin After Freshwater Dip 10/29/09
Hi Bob. I have a quick question for you. My Yellow Tang had developed some red blotches on its body (see attached picture entitled "Before 1").
Due to the fact that I had recently lost a fish to some disease, I decided to quarantine the Tang. I placed it in my QT tank and later that day freshwater dipped it (matching the temperature and PH). The dip took about 15 minutes, during which time the Tang laid sideways, but did not act irate. After the dip, I placed the Tang back into QT.
<So far...>
This morning all the red blotches were gone, but the tang's fins seemed to be rotting (see attached pictures entitled "After 1," "After 2," and "After 3"). This literally happened overnight. There is no other life in the QT, so nothing could have eaten the fins. How is this possible for this to happen overnight? The before and after pictures are 24 hours apart. In the before picture, the fins are smooth, but in the after picture, they are ruffled and look rotten. Have you ever seen anything like this? What do you recommend I do?
The Tang is not eating, but is swimming about kind of aloof.
<I do think the dip is accountable here... and "general stress" associated with it... This fish looks in good shape otherwise, and I do think that if it was moved to propitious circumstances following the bath, all should be fine here. Bob Fenner>

Re: Rotting Fin After Freshwater Dip 11/6/09
Hi Bob. Thank you for the answer. The tang recovered and is eating perfectly.
Unfortunately, the red blotches on its body are coming back (see attached picture). It is still in quarantine, but not being treated with anything. What do you recommend?
<Time going by, good care. Read here:
and as much of the linked files above as takes to convince you. The red markings are environmental. BobF>

What's that stuff in my tank?? No pic... Yellow tg. env. hlth. 10/2/2009
Hello - thank you for a wonderful site!
<Howdy. Welcome>
I have a 55 gal salt water tank and I have a Yellow Tang and some damsels in it. The other day my daughter said that my Tang had some red dots on his head - I could not see them - but well hey I wont mention my age :)..
Yesterday when we came home from school my tank had a black growth (it had long furry/grassy stuff) - anyway I went ahead and dug that stuff out and did a 25% water change. What is that stuff?
<Could you send an image?>
It almost looked like black grass - maybe??
<Not a graminean assuredly>
Not sure how to explain it.
<A photo...>
The sand had a growth/crust as well. My tang was ok this morning - still had the red blotches (looks like blood on his fins next to his body and on his mouth). I read some other emails and answers you have given about things like the bloody look on the tangs and have made sure he had seaweed and flakes to eat.
<More likely environmental in origin...>
I guess my main questions is what is that black stuff? And is my "Tangy" going to die? (The other fish are fine - and Tangy is acting somewhat normal).
<Please read here: http://wetwebmedia.com/ytangdisf7.htm
and the linked files above...>
I've got two other tanks but one I just refilled and letting it cycle and the other is a 90 gal tank that is real close to the 6 weeks cycle and I can move fish in soon do I need to put Tangy in there and it be a QT tank and do I need to put meds in this water?
<I would move this Zebrasoma now>
Have I confused you?
I'm just worried about Tangy - he is a funny fish and is VERY spoiled and we really like to sit and watch him.
(Oh before I forget I have not done anything different or added anything to the tank lately).
Thank you for everything! All this is a on going learning process.
Cecilia Lester
Paris Texas
<Ah yes. Cheers, Bob Fenner, San Diego, CA presently>

Sick Tang 09/15/09
Hi guys,
need help, a fellow reefer passed away last week and some of my reef club members got together to help the widow out.
<Ah, good>
She wanted all livestock to go to good homes and remove the entire tank.
The tank was a 325 glass tank which may have been neglected due to the owner's illness. Anyway, I took a 4" yellow tang and a royal gramma along with some Tonga rock and some coral. Unfortunately it took about 7 hours to move the fish from an Instant Ocean pail to a 20 gal tank I had setup at home. This was due to us emptying and moving the main display tank. I have had the fish since Saturday and the Tang does not look good. It is not eating and has a white film over both eyes and front of head, see pics attached. Any suggestions to help the tang would be appreciated. The gramma also had a few similar spots on it but looked better today, also not eating.
<Mmm, a toss up between causing further stress from manipulating this animal (for what good it might do...) and just leaving be and hoping. IF you are wanting to "do" something, I would net this fish out and gingerly
daub a dilute solution of either an iodide or mercuric based (e.g. Mercurochrome) liquid prep. (with a cotton swab) on the afflicted area... yes, including the eyes... This may arrest the further decomposition to an extent. Otherwise, "just time going by" in your good care will prove whether these fishes will improve/survive. Bob Fenner>

re: Sick Tang 09/15/09
Thank you for your prompt reply. I am assuming you took a look at the pics provided, this condition is a result of stress/neglect? I was concerned that it may be some type of fungus or other illness.
<To extent Frank... perhaps a physical injury was the origin>
If not, then I believe I will take your advise and hope that it will recover. I'll keep water conditions pristine and hope for the best. I don't think that netting it again will be advantageous.
thanks again,
<I agree. Thank you, BobF>

Yellow tang didn't make the night... killed by improper env. 8/24/09
Hello WWM Crew,
I have a new 24g salt water set up.
<... this is way too small for a Zebrasoma species. Read here:

It's been cycled and water tests show good. I've had 3 blue Chromis that are doing fine. Unfortunately the
yellow tang I just got didn't make it through the night. Heart breaking since I thought they're one of the tougher fish for a newbie. I acclimated the tang to the water properly before I put him in and he seemed fine. He seemed to be eating within the first few hours, so I can't imagine why he didn't make it. I initially needed him since I have green algae on the walls of the tank and it seems like darker brownish algae that collects at the bottom. Any popular reasons he\she didn't make it? What should I do to ensure the next one makes it? thanks GeraldB

Yellow tang problem, 6/17/09
I got a 55 gallon fish only tank from a couple moving to Germany about a month ago.
I have a very small amount of experience with saltwater fish (clown and blue damsel in a 20 gallon tank for about 6 years now). The tank had been badly neglected before I moved into my house. After the ordeal of moving settled down for the native fish (green bird wrasse, maroon clown, three striped damsel, 2 feather dusters, and a pencil urchin) I decided to add a yellow tang about a week ago.
<Will outgrow this tank, and may get badly bullied by the current livestock.>
The tang has lightened in color progressively worse over the last week to a point of almost completely white with a yellow stripe. The tang has been eating great; seaweed clipped to the side, and an assortment of frozen foods from San Francisco bay brands, and even omega one flake food. I wasn't too concerned about the color change after reading multiple posts online about stress related "paleness".
<Stress can lead to may other problems, is something to be concerned with.>
Tonight while feeding I noticed a deep red spot that slightly bulges out on the base of the left pectoral fin, and I am concerned. Ammonia, and nitrite levels are 0. Ph is 8.2. Temperature is 79. Nitrate it s pretty high.
When I got the tank set up at my house last month the nitrate levels were off the page (160 is as high as the card goes
) I kept about 90% of the original water. I have done about a 20% water change once a week to get the nitrate level down to 50, still high but steadily dropping.
<This is probably part of your problem.>
I figured the nitrate level would be ok for a fish due to the good health of the urchin (as much as an urchin looks healthy).
<Not necessarily, is probably causing a good part of your issues.>
Could the high nitrate level be to blame for the health of the tang?
Could it be some other health issue treatable with a fresh water dip?
<Not likely.>
Should I move the tang to the small tank and use the shotgun approach to fish medical care?
<I would not.>
Any help would be appreciated.
<Improve the water quality first and foremost. After that I would consider returning the tang as you are at the very minimum required to keep it long term, and with your current aggressive tank mates I think you will run into problems.>

Urgent issue with Yellow Tang - 06/05/09
Please help - I got my first fish two weeks ago after my local shop said my water was ready for fish.
<Dubious qualification....do bear in mind they seek to sell fish.>
He seemed fine at first but last few days seemed to be darting about a bit more and not just swimming naturally. However he was eating fine and water tests showed to be ok.
<What are you testing for? Ammonia? NO2, NO3?
I've come home tonight to find him quite listless, a bit pale and breathing quite fast. He also didn't react to feeding like he did this morning. I've done a partial water change but as its nearly midnight I only have about 15 litres of RO water here and the tank is holding around 160 litres. This is obviously not enough but Im not going to be able to get to the shop till they open in about 9 hours. I desperately want to save him so is there
anything else I can do? Or what is the best way to treat tap water ready to be mixed with the minerals as a temporary measure?
<Jo, this sounds to me like ammonia or nitrite poisoning. Was the tank cycled? Do you realize this will be woefully inadequate space for a yellow tang in the future? If the fish is still alive, do get your hands on water
fit for making WCs (deionized from the grocery works in a pinch, although it can be tough on the wallet) and run an airstone of some sort into the water...keep an eye on pH. Do read on WetWebMedia re: cycling, new aquariums, stocking, etc.>
Please help!
<Hope I have. Best of luck,>
Thanks, Jo

Surgeonfishes: Tangs for  Marine Aquariums
Diversity, Selection & Care

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