FAQs about the Yellow-Tail Blue, Palette,
Regal, Hippo Tang Disease/Health 7
FAQs on Paracanthurus Tang Disease:
PYTB Tang Disease 1, Pacific YTB Tang Disease 2, PYTB Tang Disease 3, Pacific YTB Disease 4, YTBT Health 5, YTBT
Health 6, YTBT Disease 8,
YTBT Disease 9, YTBT Disease ,
& Tangs/Rabbitfishes &
Crypt,
FAQs on Paracanthurus Tang Disease by Category:
Diagnosis, Environmental,
Nutritional, Social,
Trauma, Pathogenic (plus
see
Tangs/Rabbitfishes &
Crypt), Genetic,
Treatments
Related Articles: The
Genus Paracanthurus,
Related FAQs: Pacific YTB Tang FAQs 1, Pacific YTB Tang FAQs 2, Pacific YTB Tang FAQs 3, Pacific YTB Tang FAQs 4, PYTB Tang ID, PYTB Tang Behavior, PYTB Tang Compatibility, PYTB Tang Selection, PYTB Tang Systems, PYTB Tang Feeding, PYTB Tang Reproduction, Surgeons In General, Tang
ID, Selection,
Tang
Behavior, Compatibility, Systems, Feeding, Disease,
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Surgeonfishes: Tangs for Marine Aquariums
Diversity, Selection & Care
New eBook on Amazon: Available
here
New Print Book on Create Space: Available
here
by Robert (Bob) Fenner |
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Regal Tang Wound? 1/7/09 Hi Crew,
<Reuben> Firstly just wanted to let you all know that your
site is awesome! <Thank you> My question is regarding a
Regal Tang about 3 inches long that I've had in my tank now
for around 8 months. A couple of days ago while feeding it I
noticed that a white scab around the size of a small fingernail
had appeared on one side, <I see this in your photos> this
then developed into what looks like a wound, <To me too>
almost like a piece of flesh has been eaten away, along with this
a couple of small blood coloured patches have appeared on the
skin just in front of the gill and I've also seen it
scratching up against some of the rocks and scenery, other than
that the fish is acting completely as normal (eating like a pig
& darting about all over). I looked it up and so far
haven't been able to find anything that quite matches it, so
I've come to you all for your expertise. Tank parameters are:
Tanks been up & running for 1 year 65 gallons PH 8.3 Ammonia
0 Nitrites 0 Nitrate 80 ( I tested the water after I noticed the
scab and have been performing water changes to bring it way back
down) Temp 79 degrees Fahrenheit SG 1.024 Red sea prism deluxe
protein skimmer Canister filter for 105 gallon tank Extra power
head for added flow UV sterilizer Two air stones Sand bed is
about 2 inches deep and is made of crushed coral Inhabitants 2
Ocellaris Clowns largest is 1.5 inches had for 10 months 1 six
line wrasse about 2 inches had for 10 months <Mmm, the most
likely culprit> 1 Yellow Tang about 2.5 inches had for 8
months 1 Pacific Cleaner Shrimp had for 9 months 4 Turbo Snails
had for 9 months A few other cool hitchhikers including Feather
Dusters, a Button Polyp & a clam like crustacean I feed the
fish marine flakes & dried seaweed daily and a bit of frozen
food like Mysis & brine shrimp once every other week. All the
other inhabitants are fine and I've never had any problems
other than a brief outbreak of Ich not long after I started the
tank up which killed off my Royal Gramma and a Fire shrimp which
had trouble molting and ended up dying the following day.
I've attached a few photos if they're any help. <They
are definitely> If you've any idea what it might be and
any treatment for it I'd be most grateful as I've grown
quite attached to it and wouldn't want to lose it. <Is
most likely a physical injury... a wound as you surmise. I would
do nothing treatment-wise here. Good maintenance and nutrition
will show this fish improving with time. Bob Fenner> P.S once
I've sorted out the water quality and the problem with my
regal tang I'd like to add possibly a couple more fish and
inverts do you have any suggestions? <This 65 gal. tank is
already past full temperament-wise... part of the reason here...
I would add no more fishes>
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Hippo Tang/Health 1/6/09 Hi crew, <Hi
Derek> I got a Hippo Tang 1.5" at a LFS during Christmas
sale, and did not quarantine it, now I fully regret it. It seems
to have developed some kind of erosion around its stomach.
I've read your forum and it doesn't seem to be HLLE. Not
much on the face and lateral line, but erodes/ scar more on the
stomach area (greyish white). The LFS told me to get it out and
dose it with some antibiotics, and if not dose it with Marine
Melafix. <Melafix isn't really an antibiotic, and quite
frankly, in my opinion, is utterly useless. What it can/will do
is damage to your denitrification process. On another note, do
not dose medication unless you can identify the symptoms and then
only dose with the proper medication. If an antibiotic is needed,
you would be better off using a product containing Erythromycin
such as Maracyn. Bob may have additional suggestions.>
<<No sense using antibiotics here period. RMF>>
I've tried using nets, fish traps, bottles and still
couldn't get the sucker out. Since I can't get it out, I
turn<ed> off the skimmer and dose Melafix daily, <Stop
dosing this, you will likely be causing more problems.> but it
doesn't seem to be improving. Its still eating like a champ,
eating Mysis, brine, Nori & flake. I have a 75g tank with
150lbs of live rock, housed in it is a 3" Yellow Tang
(I've seen bullying and territorial dominance), <Not
uncommon when mixing tangs.> 2 False Percs, 1 Algae Goby and
one Dragon Goby. Water parameters seems to be quite good, should
I take any other action? What do you think the parasite/ erosion
would be? <The pic isn't that detailed for an accurate
diagnosis, but my first thought was that this fish has been in a
few scuffles with the Yellow Tang and likely got these bruises
from barreling into a cave/crevice. If you could get a clearer
pic, it would be more helpful. For now, just keep a close eye on
the Hippo. When writing to WWM, please capitalize all proper
nouns including "I" as it saves us much time if we do
not have to do this before posting.> thanks a lot
<You're welcome. James (Salty Dog)> Derek <<This
is very likely simple mechanical injury as James suggests... No
use "treating"... Bob Fenner>>
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Re: Hippo Tang/Health 1/12/09
Hi salty dog, <Yikes, my name not in caps.> I believe you
are right. The scuffs are from the Blue Tang trying to wedge
himself into caves/ crevices. The blue tang disappears after the
lights go off and hides in his favourite cave. When the lights
come on in the morning, the scars/ scratches usually worsens.
(any idea why this is?) <In my experience, Hippo's
generally try to wedge themselves into the tightest possible
crevice and this is more than likely why you are seeing this.>
Since your last email, I've stopped dosing Melafix, <Good,
green tea extracts don't do much as far as anti-biotic
remedies go.> and ran carbon to remove it. Knock on wood the
scars have been almost gone, and I'm still continuing to feed
him garlic. <OK> I have heard from other fellow reefers
that by putting a mirror in front of the tank, an aggressive (in
my case a yellow tang) tang will knock themselves out by chasing
after their shadow. In turn will lower the fish's aggression.
I'll try this once the blue tang is fully recovered.
<Doesn't hurt to try.> Thanks again, <You're
welcome. James (Salty Dog)> Derek
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Black spot, maybe not 12/26/08 Hi there,
<Hello Dan> Sorry to be a bother, but I have a confusing
situation over here. I have a 90 gallon reef tank with; yellow
tang, blue tang, two clown fish, anemone, clam, cleaner shrimp,
sally light foot, purple lobster, leather corals, hammer corals,
some polyps, mushrooms and other bits and pieces. As well as
about ten, well established mangroves growing in my sump
refugium. Everything was going quite well until I added a yellow
eyed Kole tang (which I do love) to my reef. Two weeks later I
noticed black bumps and some color fading appearing on my blue
tang. As well as some lateral line and forehead peeling on my
yellow tang. So I went on the Internet and found your site. I
think my blue tang has the black spot disease, <Mmm...
actually... you would very likely see this now, concurrently on
the Yellow, Zebrasoma flavescens... I think you may be witnessing
Microsporideans... not really treatable... and not very
debilitating> but I didn't notice any info about the spots
kind of bumping out a bit, <Good description... and likely
shiny, kind of shaped like cones... whereas Paravortex is dull,
flat...> and one day he was fine and the next he has 20 spots
on him. So I am guessing I need to quarantine him, but what about
the Kole (who is fine except for only eating off the rocks so
far) and yellow tang? <Again... or for emphasis, I would NOT
move these fishes... at least as yet...> I think I can deal
with the yellow tang as it seems as his peeling is do to poor
water quality <?! What leads you to think this?> and
stress. I am about to do a water change and hook the skimmer back
up (after two years off due to the mangroves). <I would>
Should I quarantine all of the tangs? can I do them all together?
What product would you recommend? <No, yes, None> Could I
do it in my mangrove tank or will the medicine possibly hurt
them? <Depending on what's used, yes> Sorry again and
thank you for your help. I have never had a sick fish before and
was upset to see him, I do have a good photo if needed and also
don't know how to find this page again. <Mmm, should be
here with your message/response. Please do send the image
along> Thank you Dan <Welcome. Bob Fenner>
black spot, maybe not 12/27/08 Hi there again
Bob. <Dan> I was worried about waiting another day to treat
my fish, so I made a executive decision and went against your
advice to wait to move the three tangs into a quarantine. I see
why you said wait as it does seem to cause a lot of stress (for
the fish and my girlfriend and I) to try to catch them. I was
only able to catch the infected blue tang, but did so without
disturbing my reef which seemed good as I have seen what happens
when you start moving rocks around. I went to my LFS and showed
them the same photo of the blue tang I sent you, <I still
haven't seen this image> and he told me to quarantine all
three and to treat the fish with aquarium Munster proto Marin
Intensiv, <What are the ingredients here?> which I did do.
I was reading the instructions and noticed that it said nothing
of treating black spot or Microsporideans. I know I should have
waited until you saw the photos but he seemed to be getting worse
and I wanted to get him treated as soon as possible. I have the
feeling I am not treating him with the right medication. What
should I do now? <...> I know you will have probably
answered all my questions in my second email but just in case,
should I keep treating him with the proto Marin, and if not than
what? >... nothing< should I catch and quarantine the other
tangs? <... already answered> What about the other fish?
<... How would I, anyone be able to determine what is actually
going on here?> I have been reading about dips - would you
recommend doing this? and should I keep my fish quarantined for
4-6 weeks? also I have a Marineland hot magnum that came with
cloth like filter like those in vacuums, would this work for my
hospital tank? or if not could I fill it up and run it with the
sponge filters? Sorry for going ahead as I have read some of your
articles where people did the same thing and they seemed
annoying. Also sorry for two emails at once, I just wanted to
keep you posted and if you thought the blue tang would be better
off back in the reef tank, another day would not have gone by.
Thanks so much for all your help. I appreciate it. Dan. <...
Please, see, read on WWM re Acanthurid Health, Protozoans,
Infested Systems... B>
black spot, maybe not 12/27/08 Hi Bob Thank
you for getting back to me so fast. What lead me to believe that
the yellow tangs peeling is do to poor water quality is that, It
had happened to him before and when I started trying to improve
my water quality it went away. He may have started peeling before
I introduced the Kole tang, and I have noticed that a lot of the
yellow tangs in LFS do have the same problems. I guess I
diagnosed him with the head and lateral line disease. I did have
a few mangroves slowly die in my sump a few months back when on
vacation, and when I questioned the guy at the LFS about his
peeling he guessed that my nitrites were high, which they were,
and said it generally happens when water quality is low and they
are stressed. Do you think thou I could be wrong and my yellow
tangs problem could be related to the blue tangs black spots?
<Mmm, indirectly, yes... the pitting is very likely mostly due
to "poor water quality"... is a type/form of
HLLE...> I should mention that all of my fish are acting
normal and are as hungry as ever, thou I have noticed the blue
tang rubbing a bit on the live rock. I couldn't find any
information on Microsporideans. Will my other fish be affected if
I do not quarantine the blue tang? I read some where to remove
activated carbon, I run Chemi-pure in a hang on filter should I
switch it off or change products? <... I would keep using the
Chemi-pure> As for the blue tangs bumps, on the blue part of
his body there are bumps with a black spot in the middle and
around the spot on the rising sides of the bump seems to be
whitish. However on his black markings he seems to only have one
or two white spots, and on his fins and tail just black dots no
bumps. Does this sound like Microsporideans? <Could be...
but... net cause/s?> Is there anything I should do? Hopefully
the photos are usable and helpful. Thank you very much for your
time Dan
<Keep reading. BobF>
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Sick tang... 11/19/08 Could you please help
identify these for me. I am researching for someone else . From
my understanding the owners of these fish had said, this appeared
over night. I have seen this on other fish in the past but not
able to pin point what it is cause or treatment. those fish
perished. Any help would be greatly appreciated Lynn <... the
marking on the Paracanthurus looks to be the result of some sort
of physical trauma... the Clown... is worrisome... overnight?
This might be Mycobacterium... perhaps Brooklynellosis... need
better, close up, even microphotographic imagery and staining to
discern. Bob Fenner>
Re: sick tang. Paracanthurus 11/20/2008 Dear
bob Thank you for taking the time to get back to me on this
.Unfortunately the hippo tang passed away 24 hrs upon onset of
this odd color change.. I have seen it in the past a few times.
Although it tends to be common with blue hippos when they are
smaller and more susceptible to disease when purchase at such a
young stage.. <Yes> All with the same signs of blackening
and within 24 hrs death.. I stopped purchasing such small fish
due to this similar signs and not knowing how to help.. is it
possible that this could also be a similar strain of virus that
appears darker on the tang? <A virus? I don't know> due
to its natural pigment? Please tell me your thoughts on this..
Whatever is the cause it kills within 24 hrs.. Thank you again
for your time Lynn <Is very strange... frightening. Have also
seen this "sudden death syndrome" on other
Paracanthurus. Again, I'm not aware of the causative
mechanism/s. Bob Fenner>
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Acanthuridae (Finrot?) 10/20/08 hi
, I have a question about my hippo tang. I have had her 3 months.
within the past three months I have been battling a case if ich, black
ich , and now she has a white cotton looking growth on her fin.. I had
put her in some quick cure but this never went away. just curious what
it is? and how to cure it? <Almost certainly a bacterial secondary
infection, though a fungal infection can't be ruled out. In any
case, you'll need to treat, promptly, for example with Maracyn or
Maracyn 2 (I'd try the first first, and if that doesn't work,
the second). Do also understand that secondary infections don't
come out of nowhere, and nine times out of ten the cause is
environmental, specifically water quality, though mechanical trauma
(e.g., biting, poor handling) should also be considered.
http://www.wetwebmedia.com/infectio.htm Cheers, Neale.>
Do you know what is happening to my fish? :'(
10/8/08 I was referred to you by Penny at Aqua Corals,
<A very fine retailer, individual in my estimation> I
e-mailed her to find out what is happening to my fish here is the
message I sent her explaining the problems I'm having...
Penny, Here is a picture of my Blue Hippo Tang it looks like
something took a bite out of the top of the fish and all the
tissue around it is decaying, I also have a Tang whose left fin
and side has turned white and also looks like it is starting to
decay. The fish were is perfect condition Sunday night, <!>
on Monday morning the Blue Hippo had a small piece missing and
was white all around, today a much larger piece is gone and the
white has spread further down. Do you have any thoughts on what
might be causing this. <Something (frightening) that is very
aggressive...> I had thought it might be possible that they
got into a fight but they have never been aggressive with each
other or any other fish before, and they are not avoiding each
other either. P.S All the other fish in the tank seem fine. Thank
you again for your time. Penny thought you may be able to help, I
appreciate any suggestions or help you may be able to offer,
thank you. Sherri <Again... this very rapid onset troubles
me... IF the fish was somehow "bitten"... perhaps by a
hidden predator (e.g. a Mantis/Stomatopod) or another fish, to
have decomposers (bacteria, fungi...) reduce it to this condition
in this short of time... is troubling. Do you have another system
you might move it to? I would utilize a pH adjusted freshwater
dip and formalin dip/bath, with aeration enroute... in the hopes
of arresting progress here. Please read here:
http://wetwebmedia.com/dips_baths.htm and the linked files above
re. Bob Fenner>
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Possible Hole-in-the-head in a Hippo tang. More
9/29/08 Hello WWM crew, <Miguel> I'm new to
the salt-water part of the hobby and I'm trying to figure out
how to help this little guy/gal. I would like to narrow down what
I'm treating before I use any medicines. I unfortunately
started the tank before I found your great web site and I hope
I'm not screwing up too bad. The set up: 75 gal tank started
July 2008, 80 lbs live rock, 100 lbs fine Oolite aragonite live
sand (live sand not really necessary/wasted extra money after
reading your site), Prism deluxe protein skimmer (purchased
before reading your reviews and planning to upgrade), Magnum 350
canister with a micron filter changed/cleaned every week or two
depending on conditions. <Part of the issue here> Once a
month, charcoal used in Magnum for a couple of days ( 2 to 3).
<I'd just leave the carbon in> The outlet hose of the
magnum goes through a "squid" unit (Switching Current
Water Director and I have two Maxi-Jet 1200 power-heads attached
to a Red Sea Wave maker. The latest water parameters: Temp 80F,
Sp Gr 1.025, Amm 0, Nitrate 0, <Really? Surprising> Nitrite
0, pH 8.4, Alk 3.92, Ca 420, Phos 0, Cu 0. 10% weekly water
changes using R/O water purchased from the LFS. Nothing is added
without testing for it first except for Iodide (hoping to get a
test kit soon) which is supplemented as per the Seachem
"beginner" instructions on the bottle. The fauna: 2
Peppermint Shrimp (which took care of a minor Aiptasia outbreak
on the LR), 3 Turbo snails, 5 Red legged hermit crabs, 3 B/G
Chromis, and 1 small Hippo tang ( purchased before knowing 75 gal
tank is not adequate size). 1 frog-spawn, 1 button polyp , 1
Evergreen starburst polyp on a controllable area, and 1 carnation
(again I wished I would have found your site before purchasing
but it has grown is size). The tang was purchased and place in a
10 gal QT. 2 weeks later it broke out with Marine Ich. The little
guy went through copper treatment (Cupramine) <... killed off
necessary gut infauna...> very well and was kept in the QT for
6 weeks post treatment. He was finally placed in the main tank
and was doing great...until 2 weeks ago. I noticed a single
small, white tuft-like growth on the right nares. He was getting
superficial scrapes from the LR so I kept an eye on the area. The
tuft remained unchanged for nearly two weeks and no new ones were
appearing. The fish continued to eat and was fairly active.
Within the past week things have rapidly progressed. The tuft
fell-off and now there is a nice sized ulcer under the area (see
picture WWM3) The fish also has lost a tremendous amount of body
weight and is looking emaciated ( see picture WWM2). <I see
both> He is still attempting to eat (Ocean Nutrition Prime
Reef flakes, Frozen Mysis shrimp and Nori is offered but has
never really eaten it). I noticed he is swimming with his mouth
slightly open and appears not to be able to close it (perhaps
from the muscle atrophy). I moved him back to the QT tank and the
questions I have are: does it look like hole in the head and if
so can I dissolve Metronidazole tablets in the 10 Gal QT tank.
<Mmm... not what I would do> Is there a better
antibiotic/treatment to use? <Really... root issue is water
quality, avitaminoses...> ( I'm a Veterinarian so I have
access to most antibiotics) <Mmm, though a couple of
flagellates (Hexamita/Octomita, Spironucleus) are associated with
these sorts of Neuromast destruction syndromes, the causative
mechanisms are nutritional, environmental. Even so, some folks
report (indirect) success with the use of Quinacrine phosphate...
see WWM re> Should the 3 B/G Chromis be place in the QT tank
and treated or should I wait for any clinical signs to appear?
How contagious is it to other fish if at all? <Mmm, not so
much as Tangs and Angels...> I appreciate your help and
I've learned (am learning) so much from your site. Sincerely,
Miguel Perales. <Please peruse here:
http://wetwebmedia.com/HLLESWCauseF.htm and the linked files
above. Bob Fenner>
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Re: -head in a Hippo tang (follow-up)
9/29/08 Thank you for the quick response. <Welcome
Miguel> Having gone through the information on your web site
and understanding that HLLE is a multi etiology disease makes it
easier come up with a treatment plan. My plan is to increase
water changes to twice a week even though the parameters seem OK.
I will start soaking their food in Selcon. My problem is this,
I've searched the LFS and no one seems to carry Selcon.
I'm going to have to order on-line so it will take a few days
to arrive. In the mean time I do have Seachem's Reef Plus
which does have Vitamins and Minerals. Will it hurt the fish to
soak their food in this product until the Selcon arrives? <Not
at all. It will help> I feel that I need to intervene soon and
don't have much time to waste since the tang is losing
interest in eating and is hiding most of the time. Thank you in
advance, Miguel Perales <Again, cheers, BobF> Possible
Hole-in-the
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I have a regal blue tang in serious need of help! Reading
9/16/08 Hello team, I have a regal blue tang in serious need
of help! About three weeks ago I noticed that he was missing scales in
a number of areas and did some reading and decided that it looked like
lateral line erosion. I took a closer look at my yellow tang and saw
some discoloration on his face and lateral line as well, along with
some fin erosion. I did some reading and it looks as if there are a lot
of mixed opinions as to what causes it. <Mmm, not to/for me> Some
of the more popular reasons I've read about were vitamin C
deficiency and poor water quality. <This and other avitaminoses,
stress> I feed my fish formula 1 and 2 ocean nutrition flakes,
frozen cubes of marine cuisine with brine shrimp, and green algae
sheets and have witnessed the blue tang eating all of those, although
the algae sheets are rare. <I'd be supplementing these foods...
with a liquid prep. like Selcon, MicroVit...> I did some asking at
my LFS and the lady I spoke with there suggested feeding romaine
lettuce for the vitamin c. <... no. See WWM re. A very poor choice
period> I put clips in the tank and after a couple of days all of
the lettuce disappeared. I haven't witnessed the blue tang nipping
off of them but I have seen the yellow tang eating feeding quite a bit
and he looks like he may be getting some color back. The blue tang has
only been getting worse though, he has almost no blue left on his
entire body and looks almost clear, but is still eating other foods. My
clownfish, blue damsel, royal gramma, Firefish, and neon goby all
appear to be healthy. I tested water quality and specific gravity is
1.023, <A bit low> PH is 8.2, ammonia and nitrites are both zero,
but the nitrates had jumped up to 40 ppm. <Way too high...> I did
a quick water change and that dropped the nitrates down to less than 20
ppm and I have more water mixing for another change if they get any
higher. <You need to discern the cause, deal with this here. Very
likely the "lettuce" in part> I think I may have been
overfeeding so I've cut down on how much I feed them and the water
has cleared up a little as well. I also have been battling black algae.
<Can be a factor, toxic> I no longer get the brown algae all over
my rocks but have about a square foot patch of substrate that is
constantly covered in black. I'll remove all of it, but within a
few hours it will be well on it's way to growing back in the same
spot but nowhere else in the tank. <See WWM re Cyanobacteria...>
My setup is a 75g fish only system. with an emperor 400 filter,
powerhead and airstone for circulation, and the temperature set for 78
degrees. It has been set up for about six months now. There have been a
number of events recently that may have impacted the regal tangs
health. I was having a battle with ich and conducted hyposalinity on my
display tank. I had no live rock at the time so I moved my shrimp,
crabs, and snails into my 12 g quarantine tank and left only the fish
and hermits. The tang went two months with a salinity of 1.009 and it
was at the end of that time that I first noticed missing scales.
<Another input for sure> At the beginning I also gave him dips in
RidIch with formalin <Ditto> but the yellow tang wasn't
subjected to that. While the tank was in in hyposalinity I cured about
30 pounds of live rock that is now in my display tank and have another
30 pounds curing to be added as well. Is there any way to encourage him
to eat the lettuce? <...> I put clips near his favorite spots in
the tank but he has been ignoring them as far as I can tell. Thanks,
Jason <Read here: http://wetwebmedia.com/mardisindex.htm Bob
Fenner>
Surgeonfishes: Tangs for Marine Aquariums
Diversity, Selection & Care
New eBook on Amazon: Available
here
New Print Book on Create Space: Available
here
by Robert (Bob) Fenner |
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