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FAQs on Marine Velvet, Amyloodiniumiasis, Prevention
Related Articles: Marine Velvet,
Parasitic Disease, Copper
Use, Formalin, Formaldehyde Use,
Related FAQs: Marine Velvet 1,
Marine Velvet 2, Marine Velvet 3,
Marine Velvet 4, & FAQs on Amyloodinium/Velvet:
Diagnosis/Symptomology, Cures That
Don't Work, Cures That Do Work,
Products/Manufacturers... &
Marine Parasitic Disease,
Parasitic Marine Tanks,
Parasitic Reef Tanks,
Cryptocaryoniasis, Marine Ich,
Biological Cleaners, Treating
Parasitic Disease, Using
Hyposalinity to Treat Parasitic Disease, |
Quarantine... dips/baths... Good maintenance,
nutrition, UV use... helps, but won't prevent or cure
After infestation: Fallow period... Possibly sterilizing with
bleach... |
Oodinium Outbreak 3/22/07 Hello, Great website, it has
been extremely helpful over the last couple of years. I also recently
got a copy of CMA and it is wonderful as well. <Lots of good help
there, here> I have a bad situation and would like some advice. A
maintenance customer of mine has a 210 FOWLR that is in my opinion over
stocked and now seems to be consumed with an Oodinium infection (white
flaky dandruff like substance all over most of the fish with some cloudy
eyes as well). <Yikes... no fun. I was in the service trade for
about 19 years...> All fish were quarantined before being put into
the tank until last week when the customer called me and said that he
was taking home a new Blue Spotted Stingray (which I had told him was a
poor choice). <Exceedingly> Since all of the fish had been doing
well up till then I would assume that this is where the infection came
from. <Mmm, this or most anything wet... including marine foods...>
None of the fish have died yet and they are all still eating well.
<Mmm, might be Cryptocaryon then instead... Likely Amyloodinium would
have wiped out all otherwise by now> But there are a lot of
expensive fish that need some help. Would you suggest taking out the
live rock and treating with copper or formalin, hyposalinity, just pray?
Also would a stingray, zebra eel, or map puffer be ok with copper or
any medication? <Mmm... I would treat all as proscribed on WWM...
including for these fish/groups... Prayer "helps" only those who "do and
believe in it"... Not the physical world> Any help would be greatly
appreciated. It has been a very depressing evening, I feel very sorry
for the fish that are suffering. Thanks for your
time, Jeremy <>< <Read on my friend, read on:
http://www.wetwebmedia.com/mardisindex.htm Too much to state
here. Bob Fenner> QT sterilization 9/24/05 I just
lost a couple fish from my QT to Amyloodinium, and am breaking the tank
down (I just got a smaller tank better suited as a QT). My question
is whether the Amyloodinium can survive complete desiccation (as in at
least 3 days completely dry). I know bleach will sterilize & will
use that on the net, etc, but for the tank itself & the power filter,
I'd prefer just leaving dry a while if possible. <Scott, the surest
was is to copper the QT for a minimum of 21 days with a maintained
copper level of 0.15 to 0.20ppm. This does require the use of a copper
test kit to ensure these levels are maintained. James (Salty Dog)>
Thanks for a very helpful site! <You're welcome> <<... can resist drying
for three plus days... I would lightly bleach all. RMF>> Scott
"Black Velvet" (Amyloodinium Infection) Please help-I'm
desperate! I've got marine velvet, and can't get rid of it. I've tried
Oodinex in tank and Trimarin in a quarantine tank, and the fish seem
to get better, but then it just comes back. I've already lost £500 of
fish and I'm sick of this. My water quality is good- all tests are okay,
so what am I doing wrong? I've got live rock in the tank, I have a
sump tank and protein skimmer, I do weekly water changes, and can't
understand what's going wrong. I've even fresh water dipped them and it
just keeps coming back. I've even taken all the fish out the tank for 6
weeks and changed the whole tank of water over that time and its still
coming back i also lowered the salinity but it did not help. I'm getting
to the stage when I'm going to give up please heeeeelp! Regards
Alisdair Crossan <Well, Alisdair, this is certainly one of those
"nightmare" scenarios that we here about from time to time. Marine
Velvet (Amyloodinium) is a nasty parasitic disease, as you know, and is,
unfortunately, a very tenacious one at that! Parasitic diseases can
usually be eradicated or their impact severely curtailed by depriving
the parasites of their hosts (your fishes) for a long period of time. My
normal recommendation is to remove the affected fishes to a hospital
tank, treat them with a commercial copper sulphate product, and let the
main system run fallow for a month or more...Sounds like you've tried
that already! Well- there are two possible courses of action that I'd
recommend at this point...I'd try the "fallow tank" option again- but
for a much longer period of time- say, 2-3 months....Or- you may be
better advised to "cut your losses" and completely break down the tank,
sterilize all equipment, the tank, and any decorations (and get rid of
the sand or gravel that you've had in the tank-sterilizing it is too
problematic and tedious, IMO), and re-assemble the system...Yes- it's a
real pain- and a very radical move, but it's sometimes the only way to
defeat this tenacious disease! It's that virulent! In the future, employ
a full 3-4 week quarantine period for all new arrivals prior to
introducing them into the display tank. Avoid treating illness in the
main system, as many medications can "bind" with the substrate and
decorations, rendering them ineffective, and making it difficult or
impossible to maintain a proper therapeutic level...Be patient, be
careful, and don't quit! You can defeat this illness- but it will not be
fun...If nothing else, you'll have learned from this awful
experience...Chin up! Good luck! Regards, Scott F> "Black
Velvet" (Amyloodinium) Pt. 2 Thank for the info. <Glad to be
of service> What do I do about my live rock? I cant get rid of it
because it's really expensive here in Scotland. It's £200 for 20kg so
what do I do? Thanks. Regards, Alisdair Crossan <Well, Alisdair, it's
a tough call here. In my opinion, there is too great a risk that the
rocks still harbor parasites, as evidenced by the re-occurring outbreaks
of the disease. You can basically do one of two things: 1) Let the rock
sit in an empty (i.e.; "fishless" and without substrate) tank for a
long, long time (we're talking at least 3-4 months-or even longer!) or
2) You'll essentially have to "sacrifice" the life on the rock by
soaking it for a couple of weeks in freshwater. Of course, the
freshwater will kill the life on the rock, but it will kill the
parasites as well! In time, with the right conditions, the beneficial
life forms you lost will re-colonize the rock, and it will become "live"
once again! Neither prospect is particularly attractive, but they both
will, in all likelihood, do the trick! Good luck! Regards, Scott F>
Crushing Velvet! My Problem: Marine Velvet <Yikes.. Not a fun
thing...> Infected Fish: Heavily infected powder blue tang and a
slightly infected dog-faced puffer. Not infected fish: percula clown and
a green Chromis. <Not yet, anyways...Sorry to be pessimistic, but
this is a very contagious disease...> All fish are currently in the
following q-tank setup: 20 gallon tank, Fluval 404 canister filter with
bio rings, sponge, and plastic bio strings. The tank has a 300 watt
heater to keep it at 81 degrees. It also has a sponge filter that was
seeded in the main tank for a few days with a air pump. The tank has
some plastic "home depot" flower pots as hide outs. The tank is at 1.018
and I plan to bring it up to 1.020 as the velvet goes away. <Sounds
like a good plan/setup so far...> I am using a copper treatment
called Copper Safe, dosed according to directions My questions: 1) I
know that a q-tank is supposed to be good for a fish for both disease
and new arrivals but I am having a very tough time keeping ammonia low
in the tank. It's impossible! I did everything right, I cycled the tank
with live rock, I seeded a sponge filter in my main tank, and made sure
the parameters were right before adding the infected fish in. Is it the
copper that is causing this? Is the copper killing my ammonia eating
bacteria? I even do 6 gallon water changes out of the 20 with a siphon
every day or two and the ammonia still is there. I thought I would of
been okay since I have a large canister filter on there but its not
working. <CopperSafe is my copper treatment of choice, and I like the
stuff. If used according to the manufacturer's instructions, it will not
harm your nitrifying bacteria. This may be one of these situations where
you could use a commercial "bacteria culture" to help speed up the
establishment and efficiency of the biological filter. Even though I am
a huge proponent of regular water changes (especially in small systems
like hospital tanks), you may be disrupting the biological filtration
process with these changes (not to mention, diluting the copper
concentration, unless you are replenishing it according to
manufacturer's instructions)...just a thought...> 2) The thing is,
I've tried q-tanks in the past and realized that it was newly impossible
keeping the water quality good in it. I figured that it would be better
for the fish to just be put in a stable tank full of live rock.
<Ehhh! Wrong answer! You just need to be really on top of things in a
small tank...It's really a roll of the dice by skipping the quarantine
process...just not good....> Thus I started to just add the fish
straight to my main display tank. Now this worked well for 3 years until
Mr.. raccoon butterfly brought in velvet and wiped out the whole tank.
<Ahh- now you're a fan of the quarantine process, I'll bet! It sucks to
learn about the value of quarantine like you did- but you are a much
better hobbyist for the experience!> 3) I know my 25 watt U.V. on my
50 gallon kept the parasites out this long, why did it fail this time? I
even change the bulb every 6 months. <UV sterilizers are effective at
killing some free-swimming parasites; however, as we know, it is not
effective 100% of the time (nothing is), and it only takes a few
parasites to get through on an infected fish and wreak havoc in your
tank...Since the causative parasite of "velvet" (Amyloodinium) has a
free swimming stage as well as a stage when it dwells in the flesh of
the infected fish, control can be difficult> 4) One last question,
after you do the usual quarantine process for new fish, have you ever
had the fish still break out with a parasite? What I'm getting at is, do
these parasites continuously live on the fish and attack when they are
weak or is it something that transfers off of "new" in-quarantined fish?
<As a matter of fact, I have had diseases manifest themselves in my
quarantine tank a number of times. Fortunately, I employ and recommend
3-4 week quarantine process; which provides enough time for many
parasitic diseases to show up (the incubation periods of many parasitic
diseases is anywhere from 7-28 days, so the longer quarantine period
should cover most diseases...)One way to ensure that diseases don't get
passed on to the main tank are to never, ever add new fishes to the QT
once you've already started the process...If you do, you have to "start
the clock" all over again so that the "pre-existing" fishes get another
4 weeks after you've introduced the new fish to the QT. Freshwater dips
prior to the introduction of a fish into the QT are another good
technique that you can use to help reduce the possibility of introducing
fishes into the quarantine tank. As far as your question about the way
the disease attacks: Yes- some parasitic illnesses may be present in
seemingly healthy tanks at all times in a "dormant" phase, waiting for
proper conditions (like weakened, stressed fishes) to present
themselves. When a parasitic disease such as Amyloodinium rears it's
ugly head in your tank, you need to pursue a course of treatment that
breaks the life cycle of the parasite, such as the "fallow tank"
technique that you hear us expand upon all the time...It really works.
Do a little research on the site about dealing with parasitic diseases,
and you'll get some good information that will make you an even better
aquarist than you already are! Keep up the good work and great
observations, and be sure to share your experiences (good and bad) with
fellow hobbyists! Good luck! Regards, Scott F. > Beating
Amyloodinium At Its Own Game! Dear Bob, <Scott F. in for Bob
while he's out diving!> I will try to be brief because you must be
busy reading lots of e-mails. First, your articles, web site etc are
brill and the knowledge I have gleaned will hopefully keep me in the
hobby (15 years). <I'm sure Bob would be happy to hear that! All of
us at WWM are proud to be associated with this site!> Just been
virtually wiped out by Amyloodinium and left with only one 5" Emperor
Angel (nearly died) and five 'bullet proof' Damsels (unaffected so far).
<Yuck!> This is my first encounter with this disease so really I've
been very lucky to date as I haven't being quarantining new additions
(stupid boy!). <Well- you won't be making that mistake again, I'll
bet!> Freshwater dips are clearly superb at 'blowing to smithereens'
trophozoites via osmotic pressure. I have found this process very
therapeutic to me personally after the depressed state I got into after
losing 5 prize fish. <I can relate. I find it satisfying,
myself...This is a very nasty disease!> It is a pleasure to watch
them literally disappear before your eyes when the 'patient' is returned
to sea water. <Yep!> The information you have posted on your
web-site clearly indicates the parasite cannot be eliminated completely
and prevention via quarantining is the best move. <The best move as
far as prevention is concerned...There are treatment protocols that can
help sharply reduce the parasite population from your display tank, such
as running the tank "fallow", without fishes, for at least a month,
which can help "crash" the parasite population for a lack of hosts...>
Given that they cannot be eliminated completely, I would like your
advice on a 'control' strategy :- I haven't got a UV sterilizer and
would like to know if its worth getting one on the basis that if its big
enough and powerful enough, free-swimming infective dinospores will be
wiped out at a sufficient rate so as not to be able to overwhelm the
fish by attacking in large numbers. <A potentially valuable
acquisition. U/V sterilizers can be a potential line of defense against
such parasites...> Any parasites that do manage to get on the fish
could then be 'controlled' via a biological cleaner. Looking forward to
hearing from you. Ed Parker (England) <Well, Ed- I also endorse the
use of biological cleaners, such as shrimp and/or neon gobies. And,
again- I highly recommend the "fallow" tank technique that we discuss
here on the WWM site frequently...It really works, because it addresses
the life cycle of the parasite...I'm sure that with this technique, and
your continued diligent attention to husbandry, you'll defeat this
disease! Good luck, and thanks for stopping by! Regards, Scott F>
Beating Amyloodinium At Its Own Game (Pt. 2) Dear ScottF
<Hello again, Ed!> Many thanks for your prompt reply and advice. I
will 'fallow' my display tank as you recommend. <Glad to hear that! I
think that, painful though it may be, this process works well!> I
have also purchased a 25 Watt UV for my 100 gallon display tank. I
believe I can now see the light at the end of the tunnel. <No doubt
you will...It's an awful thing to go through- but winning a battle like
this just hones your aquaristic skills even more!> Many, Many thanks
once again. Ed Parker (England) <A pleasure! Best of luck with the
recovery!> P.S. Did Bob have a good dive?, <Bob....? Howzit...?>
I bet the vis is better where you are. I live near Teignmouth, Devon
and 5m is the best average in the summer. (it drops to six inches when
it blows in the winter!) <That's scary! I tend to spend more time on
top of the water (surfing) than I do below...but my friends are pressing
me to get into scuba...A logical progression, so I'm workin' on it!
Every time I go down, it gives me more aquascaping ideas, which usually
leads to me wanting to set up a new tank....Why is that? LOL. Best of
luck to you! Regards, Scott F> End of A Velvet Nightmare?
Hey fishy gurus! I'm here again to beg for assistance. <No need to
beg (groveling is okay, however.. LOL). Scott F. at your
service!>Previously, my 29 display and 10 gallon QT both had velvet, or
at least that was everybody's best guess. My 2 fish died. I did a 100%
water change in the QT after the last fish died. Based on advice here
and elsewhere, I left both tanks to sit fallow of fish (and the QT to
finish its cycle) for a month. So, it's been a month. <Good
patience!> Yesterday, I got 2 tank-raised Ocellaris clowns for the
QT. Params were SG 1.022, pH 8.2, temp 80, 0 Ammonia and Nitrite and 15
Nitrate. I brought them home and acclimated them slowly in a 2 gallon
Tupperware bowl (with an airstone) and then gave them a 3 minute FW bath
in adjusted water w/ a little Methylene Blue. I was really, really
trying to do everything 'by the book'. <That's the way to do it,
IMO!> On the way home the bigger clown seemed to be picking on the
smaller clown. I was a little worried, but the drive was not that
long. The smaller clown didn't seem to be perking up. Oh boy. <It
can get a bit more serious in tight quarters> After the FW dip, I put
them both in the QT (lesson learned from last time). The small clown
immediately flopped on his side. The big clown did the same, but would
raise up more and sometimes swim around. There was nothing visible
wrong. The small clown was breathing a little heavy, but the big girl
wasn't. I had no idea what to do at this point, so I turned the light
off and hoped for the best. This morning the big clown is dead and the
little clown is following quickly. What happened? The little clown now
has white fuzzy batches on its belly that weren't there. Can it be the
velvet again? <May be something other than Velvet...Could be a fungus
of some sort...You'll need to check out the WWM FAQs on these maladies
to confirm that this is what you're dealing with.> Clownfish disease.
We've pulled the little clown into a small Tupperware bowl with water
from the big tank, but I'm not hopeful. Could it be the water? We
haven't been using RO water, just treated tap water. <Hard to say,
but I don't think that the water is causing the illness...Stress,
perhaps, but not illness, in all likelihood> The display tank,
luckily, is doing *fine* with copepods and a few turbo snails left over
- but we want fish! <I know that feeling!> Do we desiccate the QT
tank? For now, we've taken all the water out. I've read that can take
months and I don't really feel like waiting 6 months to get fish
:-/ I'm out of ideas. Help! Angela W. <The QT tank should be broken
down and sterilized after each use...You don't want to leave it running
on a continuous basis. Especially if disease was present in the tank. As
far as the display tank is concerned, I'd say that a month could do the
job, two months if you're really patient. If necessary, you could
desiccate and thoroughly clean the display, and you'll be ready to start
over again. Good luck! Regards, Scott F> Drastic Measures?
(Fighting Amyloodinium) Hi. I'm hoping you can help me. <I'll
try!> I have a 200 gallon DAS which is approximately 6 months
old. It has a salinity of 1.017, a temperature of 70 F, and the ammonia
was fine. The tank holds 125 lb of live rock with no substrate
surface. I've stocked the tank with a Zebra Moray eel, a pair of
Clowns, a pair of Butterfly raccoons, an Emperor, a Coral Beauty ,
Yellow tang, a Flame hawk and a Cuban Hog. The only ones still alive are
the Zebra Moray, flame hawk and Cuban Hog, The yellow tang is covered
with red blotches. I spoke to my supplier and he told me to douse my
tank (using the recommended dosage) with SERA Oodinopur A. From reading
the comments on your website it was the wrong thing to medicate the main
tank but I did not have a quarantine tank. What should I do now? Some
of your comments state that the main tank should remain fallow for at
least a month. Does Marine Velvet affect the Zebra Moray eel? <It
can. The fallow technique is valid here, by the way> What are the
implications of using the medication stated above on my live rock? Can
I still use the rock as a biological stratum? <The use of many
anti-parasitic medications in tanks containing live rock is problematic.
These medications will certainly affect the beneficial animals residing
in and on the rock. We always strongly advise against medicating in
tanks that contain live rock> If I bathe the rock in freshwater will
it kill the Marine Velvet that would be found on the surface?
<Probably- but it will also kill the beneficial organisms as outlined
above. Better to use the "fallow tank technique" that we advocate on
WWM> How does one sterilize a tank if it comes to that point? <If
it comes down to breaking down the tank, you'd want to thoroughly scrub
and rinse the tank, then soak it in a mild chlorine bleach solution,
followed by thorough rinsing and another filling, while utilizing a
dechlorinating product to remove the remaining bleach. Then you can
refill. The rock would have to be desiccated, rinsed, and placed in
saltwater to re-colonize beneficial life forms...Not fun! I'd go fallow
for a month or two before resorting to this tactic> Thanking you in
advance for your response? Vito Lai <That's why we're here, Vito!
Hope things work out for you! Regards, Scott F> Sterilizing
equipment after Oodinium infestation Dear Mr. Fenner, Your
book has been very helpful. We need to know what we need to do to
sterilize a 65 gallon tank and equipment after we had a problem with an
Oodinium outbreak. The fish have been moved to a quarantine tank, and
we decided to break down the whole system and start over (lesson learned
about quarantining new fish!!). Would cleaning it with fresh water and
drying be sufficient? Thank you very much! Stan and Denise Krol
<I would, do suggest "nuking" this system and gear... with a bleach wash
per the steps, tools listed here:
http://www.wetwebmedia.com/clncarta.htm Simply freshwater rinsing
and drying may... not "do the trick". Bleach this system. Bob Fenner>
Re: Sterilizing equipment after Oodinium infestation Dear Mr.
Fenner, Thank you for your quick reply! We read your recommendation,
but are still a little confused. Should we fill the entire tank and run
the entire system with bleach solution? Or should we rinse the
components individually? <All the gear, running together... a cup or
two of "household" bleach total should do it. Take care not to spill any
on your clothes, floor, furniture...> Should the tank itself be
soaked or just wiped out with a bleach solution? The tank is
glass. Thank you for your time and patience!! Stan and Denise Krol
<Best to run the system with the bleach added for about an hour, then
dump, fill with fresh, dump again, refill... a few times till it no
longer smells of bleach... then new salt mix can be added immediately
and the system left to run for a week or so before proceeding to add
biological materials (e.g. live rock, bacteria culture...). Bob Fenner>
Marine Velvet resilience Bob, about 2.5 months ago (maybe a
little longer), a had a terrible outbreak of velvet and it totally
destroyed my three year old tank. I broke down that tank and stored the
expensive components in a closet and threw away things like nets, etc.
Well. . . in the mean time I bought a new tank and I am adding the live
rock and aragonite tomorrow. Now I'm sort of freaking out. Tonight when
I went to wash the aragonite, I forgot that the bucket I used to drain
the velvet water is the same bucket that I used to wash and store my new
aragonite for the new aquarium. Bob. . .how long can that stuff last in
a very dry climate? <Not much, well for more than a month> The
bucket has also had some copper in it. Is the copper still hanging
around? <Doubtful. Will be complexed by the new materials in the new
tank. You can test for, but there will be little to no free cupric ion>
Will it "infect" my aragonite? I also would like to continue using the
same quarantine tank and power filter which has been stored dry. Do I
really need to sterilize? <Hmm, would have been better to "bleach,
wash" all... but likely fine.> I know it probably would have been
best to sterilize the bucket but it is hard for me to believe this
protozoa can live for two or three months out of water. If you think I
need to throw everything out I will. I can't deal with starting a tank
by introducing problems. Thanks, Dave <No need in my estimation
to do anything more or different than you already are. Velvet and ich
are parasitic problems that can be oh so/too easily introduced with new
live materials... best to do what you can (dips/baths, quarantine) to
prevent and set-up, maintain an optimum environment to preclude
hyper-infestations. Please read through this "more balanced"
approach/understanding posted on our site:
http://www.wetwebmedia.com/tanktroubleshting.htm Be chatting. Bob
Fenner> Marine velvet woes... Hello Mr. Fenner,
<Hello> Great site! I've been reading through it ever since I decided
to try my hand at fish keeping. I would say that the most helpful and
critical piece of advice I've gained is that any changes made to these
systems has to be gradual. Whether adding fish, or changing
environmental conditions. I believe that's been the key to my tank's
initial success. <A good strategy, underlying principle> Recently,
however, a bad case of Amyloodinium has quickly de-stocked my tank to: 0
fish per gallon. What remains is an anemone crab and live rock. I would
like to eliminate the parasitic infestation that remains in-tank while
keeping the crab and rock alive. What would you suggest? <Allowing
the tank to go fallow for a few months...> Is the crab susceptible to
the same disease that killed the fish? <No> If not, could it act
as some sort of carrier/vessel for the Oodinium, that when acclimated
into a clean tank it could possibly inadvertently help speed the death
of even more fish? <In a manner of speaking yes... the presence of
metabolic activity does extend the life/viability of resting stages,
non-infective algae...> I wonder similarly about the liverock since
this will complicate moving either of the two. <A similar effect,
yes> Any help would be great. Thanks! <The various approaches, a
weighting of their likely value/success is posted on various places in
the FAQs on Marine Diseases on WetWebMedia. Bob Fenner> Will
micro waving or boiling kill the cyst stage of Amyloodinium? Dear
Mr. Fenner, One of my tanks has suffered 2 wipeouts from
Amyloodinium. After the first crash the tank was left fallow for about 6
weeks. After the second crash a friend, with many years in the hobby,
suggested treating the tank with Acriflavine, Greenex, hypo salinity,
and elevated temps for a month, or so. I did just that and then left it
fallow with temps in the 90's and a specific gravity of 1.010 for
another 2 to 3 months. I recently introduced a Bluespot Jawfish. He
was the first fish reintroduced into the tank. I know now that was not
my best option. To add insult to injury I did not quarantine him. So I
killed a beautiful rare fish and I will never know whether all my effort
eradicated the parasite or not. <Or re-introduced it> Who knows
maybe he brought it in with him. The fish was active, eating and doing
well from day one. He got what appeared to be Amyloodinium after about 3
weeks in the tank. I was unable to save the poor little guy. I am
wondering if there is anything I can do to salvage this tank and make it
safe to add fish to? <All sorts of steps, fronts can be utilized to
"improve" ones chances. Please read:
http://www.wetwebmedia.com/mardisease.htm to help you develop a less
"didactic" sense of what states of disease/health actually entail> I
have had several suggestions from treatment with copper and
sterilization with bleach, to ripping it down and starting over. I have
read everything I can find on Amyloodinium. Apparently the dormant cysts
are not susceptible to treatment, <Not much> so then copper and
bleach (I assume) would not be effective. I do not want to treat the
tank with copper rendering it unfit for inverts. I am thinking my only
option is to rip the tank down and start all over, throwing away
probably 500 dollars worth of rock and sand. <Not the only, or best,
better of options... there is just slightly better chances here of not
having further problems... compared with more waiting, hypo salinity,
elevated temperature... THEN optimizing your likelihood of avoiding
outright infestations by selecting better specimens of appropriate
species, utilizing dip/baths and quarantine procedures, augmenting
feeding, biological cleaners... Please read the above "three sets of
factors" article and the many FAQs, Links beyond> Is there anything
that will kill the dormant stage of this virulent pest? <Not
definitively... w/o generally killing most all other life> Do you
know what temperatures would be necessary to kill the cyst stage of
Amyloodinium? Micro waving or boiling the contents of the tank in a
water and bleach solution was recently suggested to me. Could the cyst
stage of this organism possibly survive that? <I would not go these
routes...> Where, besides the substrate and water do the dinospores
and the cyst stage of this nasty organism reside? <Can be on any
surface, really... biological and not> I assume they adhere to the
LR, surfaces of the acrylic tank and equipment, as well as the bio media
(bio balls and bio bale of the CPR BakPak)? If I were to start from
scratch...........do I throw away all the sand, LR, and bio media never
using any of them again or would it be safe to use them after a thorough
rinsing, some treatment, perhaps soaking in bleach, micro waving or
boiling in a bleach and water solution, rinsing again, dechlorinating
and then drying in the sun for some period of time? <Again, this
extreme approach is not worthwhile. I appreciate your situation... have
had several very frustrating entrenched parasitic problems in stores,
collecting stations around the world... that for expedience sake
"Nuking" with bleach, formalin, other bio-cides was the avenue of
choice... for time, sureties sake. If it were my system, situation, I
would use the monies you might otherwise spend on new LR, substrate...
and go on a small vacation instead, while the system is going fallow...
starving out, greatly weakening the problem here...> I have 6 pieces
of coral in the tank attached to small pieces of rock.......do I have to
destroy those as well? <No my friend> What do you think? If you
are unsure is there anyone you could possibly refer me to? Any
information would be greatly appreciated. <Look for books by Edward
Noga on fish disease> Thank You so much for your time, it is greatly
appreciated. Leslie <How to put this? All life has "diseases" of
different sorts, that can/will express themselves given inopportune
conditions, events... The ways to avoid "disease" are many, but taken
one at a time as general inputs (livestock selection, nutrition, social
dynamics...) can/do overall weigh the equation/sliding scale of
health/disease in the keepers domain. Think about this deeply... a very
important lesson about the nature of the truth, life. Bob Fenner>
Help - Amyloodinium ocellatum Help Bob! <Anthony Calfo in your
service> I finally figured out what has killed many of my fish
Amyloodinium ocellatum!! That evil stuff has taken out - one 4"
Harlequin Tusk, one baby Clown Trigger, one 3" Huma Trigger, One 3"Niger
Trigger, One 4" Queen Angel and the one who brought it to my tank in the
first place a Juv. Koran Angel. No, all of these fish were not in the
tank at the same time. <my friend, you have just learned a very
expensive lesson in why so many experienced aquarists rant and rave
about how you must have a quarantine tank and use it. It would have cost
one quarter of the money you lost in fish not to mentioned saved their
lives likely (or at worst, you would have lost the carrier but spared
the main system). Please research the archives on the equipment and
protocol for a QT tank> Just recently I thought all was well, all my
tests came out at the correct safe levels (Ph, Salt, Nitrate, Nitrite,
temp, etc.) My Snowflake eel and Damsel did not show signs of being sick
but I think they could live in Nuclear Waste water if they had to now.
<agreed! especially about the eel!> So thinking it was safe I decided
to buy myself a new fish to celebrate - enter Disco, my 6" Stars &
Strips true puffer. He was very active for about 3 days and then the
tiny velvet spots came, but this time I was determined to save this one.
I moved all my hermit crabs to another tank and started copper
treatments to the main tank to try and kill the parasite and cure
Disco. <wow...what an awful idea, read on...> It's been about a
week and he still has spots but is eating well, has his color back, and
a lot more active. I have many questions. <all medications must be
dosed in a bare bottomed tank (like a QT tank) Medications such as
copper are rendered less effective or ineffective by the buffering
action of calcareous media (gravel, sand, rock, coral skeletons, etc).
Furthermore, the media is now tainted for future invertebrates...ruined
essentially... anemones, starfish, shrimp, etc. can overdose on the
absorbed copper in the substrate even when the water tests copper free.>
What is the best way to rid the parasites from my main tank. <you
can leave it fishless for 4 weeks with a slightly lower salinity
(1.017). However, what's left of your biological filter after the copper
treatment will wane after a fishless month. Do stock very slowly
afterwards. You may run fish in a QT tank separately at the same time to
be prepared for restocking> I am prepared to break it down
completely. <not necessary... no tank could ever be made
sterile...nor any fish. All do carry some small amount of pathogens...
stress induces them to flare. Just focus on good water quality and
reduced stress> I also have live rock - would the parasite leave
'eggs' in the rock as well? And how do I go about cleaning the rock?
<Ughhhhh... a lot of live rock stained and killed with copper. A very
expensive lesson. The LR is not to be wasted totally...it can become
more biologically active again... but having chemically adsorbed copper,
many great things will never grow in it again.> The tank infested is
a 55 FOWLR - I have an unused 90 gallon - A currently running 29gal with
a LR, crushed coral and the hermit crabs. I want to know using these
tanks what would be the best route. My first idea is to break down
the 55 completely and use the 90 as a hospital for the puffer.
<hospital tanks are ideally smaller and more manageable with regard for
dosing medication and doing water changes. If you are willing to spend
the extra to accomplish that in a 90 gall. so be it. Else, invest in a
smaller QT tank (20L to 30 gall would be nice for these larger fish
species)> Once well move him to the 29 with the eel and crabs
temporarily. drain the 90 move it - fill 90 back up with LR and
substrate and get it cycled. then move everything in to the 90. Then
start up the 55 again. <too complicated, my friend> My LFS said
copper stays in the silicone around the tank even after you remove it
from the water. Is this true? <hehe... that is about the only thing
copper doesn't stay in... your rock and gravel are ruined for ever
keeping inverts again most likely. Stick with fish only and you won't
have to throw it away> Does it affect the fish that much?
<PolyFilters will mop up the copper in the water when you are done...
just stick with fish> Would that make using the 90 out of the
question as the hosp? <a huge hospital tank <smile>> I apologize
for such a long email, but I want to make the right decisions. I am now
convinced as to the value of prevention. I will always quarantine all
new specimens! <yes... I just hate to see folks learn the hard way!
Best regards now that you are on the right track. Kindly, Anthony>
Thanks for all your help - The Marine world is a better place because
of you! God Bless
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