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FAQs about Sea Cucumber Disease/Health
Related Articles: Sea Cucumber, Marine
Scavengers, Sand Sifters
Related FAQs: Sea Cucumbers 1, Sea Cucumbers 2, Cuke
IDs, Cuke Behavior,
Cuke Compatibility, Cuke Selection,
Cuke Systems, Cuke
Feeding, Cuke Reproduction,
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Pink Cucumber Problem 11/16/08 Wet Web Media I am
having an issue with my pink cucumber. I have had this cucumber for years.
Within the last few months it has been shrinking in size. When it first started
to shrink, the feeding tentacles did come out but not as much as when it was
really healthy. <Sounds like it is starving to death...> Lately I have
not seen them come out at all. I am trying to figure out what has changed that
would cause this effect. I did add some 100 micron filter socks that I change
out every few days. I did not notice if however, if the decline started before
or after adding these filter socks. My PH is normally around 8.2. Salinity is at
1.025. No readable nitrates, ammonia, or nitrites. I did some reading and it
suggested stirring up the sand bed so I did do that to help get some nutrients
in there. I turned off my skimmer and took out the filter sock for the night.
When I was reading, it stated that the cucumber likes to be on the live
rock. Mine has stuck itself on the glass. It has only moved a couple of inches
in the whole time it has been in the tank. Should I think about moving it to
some live rock? <No... if that's where he wants to be, I'd leave him for
now.> Would DT's Phytoplankton <DT's phytoplankton and maybe oyster
eggs... might help. You might also try baby brine... or just any really small,
fine particle food you can find... maybe some kind of fish larvae diet. But do
spot feed these things and be careful not to hurt your water quality with too
much.> or the Liquid Life Phytoplankton <This would not likely help as
much.> be a good source of food to start manually feeding? If so, how many
times a week would you suggest? <I would spot feed a little bit every day,
perhaps even twice a day until it starts to put out tentacles again.> I
am trying to do everything I can here so any help you could give me would be
awesome. Thank You Tony <Good luck, Sara M.>
Re: Pink Cucumber Problem 11/17/08 Should I keep the 100
micron filter socks removed? Will they remove the food or are the food particles
too small to get captured if I leave them in? <If the socks are easy to
remove and replace, I'd take them out before feeding and leave them out for an
hour or so after feeding... then put them back if you want.> Thanks Tony
<De nada, Sara M.>
My sea apple or cucumber, hlth. mostly 9/22/08
<Mmm, all Sea Apples are Cucumbers... Holothuroids> don't really know the
difference, but its feeders on its mouth are gone, <Interesting... that it
didn't poison your system> we had our power out for about 20 hours and I did
about 10 water changes small ones all night and day. Will they grow back or
should i take it out? <... up to you. May well grow back...> It does have
like two small white ones, not sure it they grew back that way or what, I don't
see it letting any liquid out or anything. Also its opening it mouth like its
still feeding its just the two small feeders are too short to go in. Unsure I
would appreciate any info you can give, I have and still will be reading your
site. Thanks Kelly c <Do so... Here: http://wetwebmedia.com/cukecompfaqs.htm
and the linked files above. Bob Fenner>
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Sea Apple Hitchhiker:
Pea Crab - 3/21/08
Hi,
<Hi there Joe>
I am researching this for someone and I haven't been able to get an
answer as of yet, I was hoping someone here could help me.
<Hope so!>
This particular issue is with a Sea Apple <Uh-oh> it showed signs of not
doing so well for a few days. There was a white portion of it looking
like it was deteriorating and
expelling its insides.
<Not good>
Since then and further observation the owner noticed that there was
something inside the sea apple, it was a small crab or what looks like a
crab.
<Yep>
Do you know or have heard of this happening,
<Not specifically with Sea Apples/Pseudocolochirus spp., but I’ve heard
of it in relation to other Cukes/Holothuroids. Sea cucumbers can be
hosts to many different organisms, including Pearlfishes/Carapidae,
Polynoid Polychaete worms, Periclimenes shrimps, as well as crabs
(Pinnotherids, Portunids/Lissocarcinus orbicularis,
Eumedonids/Hapalonotus reticulatus, etc.).>
and what type of crab this is.
<Looks to be a Pea Crab, family Pinnotheridae. These are small crabs
that live in Cukes, tunicates, bivalves, etc., with varying degrees of
commensalism to downright parasitism. While some live and do only low
key, if any damage to its host, others can cause more threatening
damage, such as atrophy of the respiratory organs/“trees”. Here are some
examples of this family of crabs:
http://www.unige.ch/sciences/biologie/biani/msg/teaching/photos%20liste/Pinnotheres%20pisum.JPG
http://outdoors.webshots.com/photo/2762668420086890761xKfyFR >
I attached a pic for reference,
<Thanks, good photo!>
up until the white deterioration of the portion of the apple it was
healthy and doing well. Tank is a 150gal, 0 nitrates, salinity 1.024 and
pH 8.4.
<I'm guessing that the crab has been removed permanently from the Sea
Apple. If not, I would do so. I would also recommend keeping a close eye
on the Sea Apple for further decline. They can do significant damage to
a system when they die! Please see this link for more information re:
http://www.wetwebmedia.com/seacukes.htm >
Joe Brillon
<Take care, -Lynn>
Re: Sea Apple
Hitchhiker: Pea Crab – Now, Sea Apple in Trouble - 3/24/08
<Hi Joe>
Thank you very much for your response as I have passed the info on.
<You're very welcome.>
It appears now that the area of concern has worsened.
<I’m so sorry.>
And the cause is unknown...any idea's what could of caused deterioration
in the body of this animal?
<No, I’m sorry to say that I don’t. There are many possible causes
including predation/picking/rough handling at some point. It could have
gotten too close to a heater, pump intake etc, or it could be starving
and deteriorating. These are notoriously difficult animals to keep. They
need pristine/stable water conditions, a good supply of food, and lack
of predation to survive - and in this case, to have a shot at recovery.
Also, unless the Sea Apple is in a species tank/kept alone, I would move
it to a quarantine tank to avoid the possibility of its poisoning the
other tank’s inhabitants. At the very least, I’d run carbon/PolyFilter,
and have a large amount of prepared water on hand for a major water
change should the cuke decline further/die. Signs of decline would
include deflation, expelling of insides, and losing color. Either way,
I’d have a QT set up for either the cuke to go into immediately, or the
fish/shrimps, etc, to be moved into should the worst happen. Please see
this link for more information regarding Sea Apples/tank poisonings.
http://www.wetwebmedia.com/cukeselfaqs.htm >
Joe Brillon
<Sure hope everything works out for your friend and the Sea Apple. Take
care, -Lynn> |
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Crab soup du jour? |
Sea Cucumber Disease/Health (4/2/05)
Good evening,
<Hello, Steve Allen here.>
I have a pink & black cucumber that is about 2 years old.
<What species? This is not a common name with which I am familiar.>
Yesterday she came out from under the live rock and she had what looked like a
small bloody ulcer...
<Some sort of sore, but not bloody, as these creatures do not have blood.>
...about 5mm in dia. with amphipods picking at the edges. I transferred her to
my quarantine tank.
<Good idea.>
Is there any thing I should treat her with.
<If the sore does not appear to be healing, you might want to try a
broad-spectrum antibiotic intended for aquarium use.>
I added just a little bit of iodine to the quarantine tank.
<Probably not really much help.>
The quarantine take is a 20 gal with no substrate, so I am concerned about her
not having anything to eat while she is in there.
<Being uncertain as to what species you have, I have to ask is it a filter
feeder or a detritus eater?>
My main tank is a 80 gal reef tank w/ 100lbs live rock 50 lbs homemade
Aragocrete 3-6"dsb, 20 gal sump/refugium 1-2" sand bed for amphipods 15lbs
Aragocrete w/AquaC EV120. I do a 5 gal water change every 4 days (Coralife). My
parameters are Temp 78, ph 8.2, Amm 0, Nitrite 0, Nitrate 0, calcium 450, Alk
norm, (what ever that is, I got the Red Sea kit, Salinity 1.023.
<This all sounds reasonable.>
I hope there is something I can do, I received her by mistake 2 years ago in a
livestock order but I don't want to lose her.
<Understood. Excellent water conditions and possibly the antibiotics is about
the best you can do. Little is really known about diseases and treatments for
echinoderms. Good luck.>
Damaged Cucumber
Hello,
I have had a brown sea cucumber for at least 2 years which is about 5 inches in
length. Last night I noticed a yellow bulge on top of it. It has never changed
colors. I moved the rock it was on to see 2 gashes in its sides about 2 inches
long. There was white stuff flowing from the gashes. After consulting my LFS I
removed it from my tank.
<Good!>
Unfortunately, and I know you'll be disappointed, I do not have a quarantine
tank. I placed it in a bucket (tank dedicated) with the rock.
<Ok, but you really should have that quarantine tank.>
This morning a chunk of skin had fallen off. About half of the body looks
"okay". The end where its feeders are is sunken and it has a brownish
ooze. My LFS is unable to quarantine this for me. I am unsure whether to make
shift a QT or euthanize.
<I would at least hold it for awhile in the bucket. Add some aeration, heat,
and make small daily water changes and see what happens. Mix up a gallon or two,
drain that amount from the cucumber bucket, siphon replacement water from the
main tank, and add the new salt water to the display.>
I was told sea cucumbers normally don't live beyond 2-3 years. What is your
opinion?
<I would not give up yet.>
I would like to give it a chance, but I don't want to take a chance of it
harming the rest of my tank.
<No, for sure leave it separate.>
Sincerely, Peg
<Good luck! -Steven Pro>
Cucumber
Hi hope everyone is ok.
<So far so good>
I have a 90 gallon tank that had 2 yellow tangs 3 blue
damsels 1 purple Dottyback and 1 maroon clown. I started with 2 bubble tip
anemone now I have 7 of them my water quality has been great since I started
this tank (after cycling of course). I came home to find all fish dead except
the clown. I assume that my pink and green cucumber has died and has poisoned
the tank, for I have not seen him since this happened. I got all the dead fish
out except for 1 damsel that was in the back, I seen my serpent star and hermit
crabs eating him, I have corals growing on my live rock and would hate to
disturb them trying to find this cucumber, my question is will the crabs and
star eat him or should I take out the rock and find him?
<I would remove it.....carefully>
I am afraid of doing more harm than good. Also the corals look stressed even
after 3 -30% water changes and the anemones turned green but seem to be
improving, are they going to die anyway?
<Not necessarily>
Anyone who puts a cucumber in their tank should think twice before they put a
potential time bomb in their tank, I have put too much time and money and have
learned my lesson. Thank you in advance, Kevin
<I would test the water (ammonia/nitrite/nitrate) to be sure the biological
filtration is still functioning and try to find and remove as much of the cuke
as possible. Think about where the currents predominantly carry wastes in your
tank and start there first. Many varieties are extremely toxic in
these cases. I would expect stress but success with removal and sufficient water
changes. I would keep an eagle eye on those anemones too. Best of luck.
Craig>
Re: Sick Sea Cucumber
Hello,
<Hi!>
As you may recall I wrote earlier regarding my cucumber and its unsightly
gashes. It was with difficulty I decided it could not be saved. My question at
this point is regarding the live rock that was with the cucumber. Would poison
be retained by the rock?
<If you haven't noticed any ill effects by now you're probably in the
clear>
If I rinse the rock and vacuum it, will it be safe for my tank (fish &
inverts).
<I see no reason why it shouldn't be okay as it is...But if cleaning the rock
will make you feel better...>
Sincerely, Peg
<David Dowless>
A Rotten Apple? (Sea Apple In Peril?)
Hello,
<Hi there. Scott F. with you today!>
I hope you can help me. I have a sea apple that has slowly deteriorated. I can't
seem to find any information on the web on the care for this animal. I've had it
two years and I believe my clown and wrasse have chosen to pick on it. It
started having little white lines all over his body. I thought these might be
scars. The Sea Apple went and hid under a rock somewhere and I couldn't find
him. I was cleaning my tank and looking for him and found him all shriveled up
and what appeared to be his insides coming out. Isn't this a defense mechanism?
<I suppose it could be...Usually, this happens as a response to some sort of
stress...>
Well, I scooped him up and put him in a zip and am floating him in the tank. I
also heard if they die they can poison everything else. So I'm not sure what to
do. How do you know if they are dead?
<You'll be able to tell quite obviously. A very "deflated"
appearance, and off color.>
He still has color, but looks real bad. I have another tank with a golden puffer
in it, that maybe I can transfer him to. Not sure if puffers eat sea apples.
<Well, he might take an exploratory "bite". Personally, I would
isolate this animal in it's own tank. The potential for a release of toxic
material is great. Err on the side of caution, and make sure that whatever tank
he is in has aggressive chemical filtration, with activated carbon and/or
PolyFilter running 24/7.>
My puffer doesn't even bother the snails. Okay, hope you can help. I don't want
to keep the sea apple in a bag too long, but don't want to pollute my tank
either. I have a hospital tank but I'm at work now and it will be late this
evening before I can do anything.
Thank you, glad y'all are here to help. Liz
<Well, Liz- I guess the best course of action is to isolate the animal in
that extra tank as soon as possible, and maintain good water quality and stable
conditions. Hopefully, that could help bring about a recovery for the animal.
HTH! Regards, Scott F>
Cucumber Troubles (3/24/04)
I have had a pink and green cucumber about 3 inches, I think it is a Pentaca
anceps <yes, fascinating creatures>, in my tank for over a month now completely
oblivious to its potential for toxic emissions. <Though all cucumbers have
some toxic potentials, Pentacta anceps has a good reputation as relatively
safe.> I just noticed a small spot about the size of a nickel that
looks a little like a fungus. <Uh, oh> I have though about moving it to my
hospital tank but there is still some residual copper in there so I have been
hesitant. <Smart. Any copper could be lethal.> Is the spot something to
really worry about? If so is there any way to treat it without moving it to the
hospital tank and if I should move it, how dangerous is the copper in that tank
to the cucumbers continued health (hopefully). <The spot could be
bacterial or fungal infection or simply degeneration. There is generally little
to be done successfully if this is the case. Removing it to a copper-free QT and
trying a broad-spectrum antibiotic may work. You will need to feed it carefully.
The other option is to leave it in your tank and keep the water in pristine
condition. If the spot is spreading or the cucumber appears to be going downhill,
then remove it sooner rather than later for the safety of your tank. Hope this
helps, Steve Allen.>
A Cucumber In Trouble (3/17/04)
Hi, <Greetings. Steve Allen here tonight.>
I have a 75g SW tank with live rock and clean up crew only. It has
been set up for 8 months (no fish yet, taking my time) <Impressive
patience.> I have a Tiger Tail cuke that looks different than
usual. Tank parameters are normal, Ammonia 0, nitrate 0, Ph 8.1. Sal
1.0235 . I am in the process of raising the temp in the tank, eventually to 78)
I have kept it at 74 and I have raised it up to 75 over the course of 1 day. The
cuke is shriveled up to about a 2" length (normally 4-6"s)
Additionally, it appears to be "shedding its' skin". I read on the
site about eviscerating and I am wondering if this is what I am seeing. Do cukes
lose their outer flesh, is this healthy? <No and no> Or am I looking at
his guts? <Hard to say without a picture. If so, you should be able to see it
originating from the end.> If so, will the eviscerated material kill the
hermits, brittle stars or snails? <Always a bit of a risk, but this species
does not have the bad reputation of some others.> I hate to toss him out in
haste, but... <If he does not look better soon, I'd say pull him out.>
thanks, Brian <Hope this helps.>
Safe handling
I would like to know how to safely handle the sea cucumber Actinopyga
agassizii.
Thanks
Jonathan
<Best with gloves, though can be handled bare-handed... just wash your hands
immediately afterward, and underwater, as in simply lifting the specimen and
placing it into a submersed bag/container (not lifting it into the air). Bob
Fenner>
Cucumber Problems (5/23/04)
Hey guys, thanks in advance for enlightening me on yet another subject, I speak for many by saying we'd be hurting without the WWM Crew! <Steve Allen tonight. Glad to be playing a small part.>
Anyway, I have a 75 with a 29 DSB sump, about 8 fishies, some soft corals and polyps mac algae and thousands of other little critters. Water parameters are perfect due to the DSB with high flow support (about 13x per hour). Everybody is doing great except for this one cucumber I have. He is one of the more "safe" cukes (i.e. not a sea apple cucumber), pink and green with pointy feet, a side of many pod feet, and a crown of
tentacles that he cleans off in his mouth. <Pentacta anceps> I've had this guy for well over a year and he has had a very nasty habit of climbing to the top of the glass of the tank (I have two other cukes, and they seem to find plenty to feed on away from the top - one even split into two
separate organisms!). <Yellow ones (Colochirus robustus) most likely. Smaller and seem easier to keep, IME. I bought two last fall and now I have six. Truly amazing to see them twist up and split.> But this guy likes to hang out at the top of the glass. <Better circulation, perhaps? Once they find a suitable spot, they don't move much. One of mine has been in the same spot for four months.>
This is a serious problem for me because these guys are very hard to move <Easy to tear their tube feet off--they stick to the glass like glue.> and I have to do regular weekly water changes. He always positions himself so that he is out of the water during the water change. At first, I would use a metal scraper to slowly work him from the glass and deposit him elsewhere (far elsewhere), but he would just go back to the same area. Eventually I left him there because I felt that being out of the water for a few minutes might be less stressful than scraping him off where invariably some of the pod feet break off (I swear I was really careful and tried my best not to hurt him). <Understood> He didn't seem to mind and things went like this for the better part of the year. However, over the last week or so, he has been getting soggy, and I am afraid that he might be dying. <Sounds bad> He is still hanging on to the glass by a part of his body. <If only part of it is holding on and the rest is droopy, it's a goner.> I don't want to kill the poor guy (I already feel responsible for his current state), but I also don't want him to croak and poison the tank as I have read even the "safe" cukes are not really that safe when they die. <If you have a very large tank, a small one like this will not likely cause harm, especially if you use chemical filtration (carbon/PolyFilter) and are doing water changes, but there is always a risk. I wouldn't bet my reef on it.> At the same time, they do have regenerative prowess and I am an optimist. <Cucumbers are probably not as regenerative as seastars. Any echinoderm that starts to melt (for want of a better word) is almost certainly doomed.>
Should I leave him be? <Since you only have 75 gallons, the safer course is to remove it sooner rather than later.> Should I
euthanize? <Hmm, I am really not aware of how to euthanize an echinoderm. I suppose the freezer is a faster death than drying out. Remember, though, that echinoderms do not have brains. It is very
unlikely that they experience pain or distress like fish do.> I feel like any kind of moving will mean his demise, which is why I didn't put him in QT.
Thanks everyone and sorry for bothering you with my problems. <No bother.> No more cukes for me. <Stick with the little yellow ones. I suspect your Pentacta either has not gotten enough nutrition or has been harmed by the exposure to air. This can certainly be damaging. On the other hand, there are may echinoderms that live in tidepools and are frequently exposed to air.>
Cucumber Problems (1/11/04)
Hello again resplendent friends. <Hmm. Not looking particularly resplendent
this time of night personally. Steve Allen at your service.> I have another
cucumber question I sincerely hope you can answer. A couple weeks ago I was at
LFS and noticed they had a new black sea cucumber. It's a young Holothuria atra
and he/she didn't look happy. <Could be dangerous to take home a potentially ill
sea cucumber given their toxic potential.> They had no idea how to care for it
and so, despite their reputation (of which I am well aware), I took him
home and named him Bort. <?> I built a small species refugium beneath my 200 Gal
display tank w/ separate filtration as well as plumbing to main sump - I will
seek other arrangements as he grows. I put down a few inches of sugar-size LS
and built him a little cave out of LR. His only other tank mates are a few small
leather corals (Sarcophyton sp. and Nephthea sp.)
that I'm procreating and a half dozen Astrea snails. He seemed to be getting on
quite well until this evening. He is out and about long before the lights are
set to switch off and he is clinging to the glass, which struck me as a bit odd.
<Indeed, this is a sand-sifting species that should keep itself to the sandbed.
Is there enough food for it there.> And yes, I'm sure about the taxonomy. I can
see his tentacles feeding as though he were grazing.
What worries me is the milky viscous mass that spears to be emanating from his
side. <uh-oh> These threads appear to be Cuverian in nature, but shouldn't they
be coming out of his mouth? <Unless he ruptured.> And why has he released them?
<If he ejected, but could be that his side split open for whatever reason.> No
ammonia or nitrite and almost no nitrate (20ppm-ish). pH is a bit low as is Alk;
<number, please.> can't figure out why, but working on it. Phos shows smallest
possible reading. SG 1.0245. Temp 77-80ish. So what gives? <I trust you
acclimated slowly over a couple of hours or longer.> Also, should I try to
remove the threads from the system or will that just further agitate him? <I
would not do this, you might totally eviscerate it.> I have a strong skimmer,
added carbon and do frequent water
changes. Don't really care about anything in his tank except the cucumber. Do,
of course, care about display tank. Should I isolate his tank? <Definitely at
risk of poisoning the entire system if any connection.> That will leave him with
no heat or skimmer so I'm a bit hesitant, but I will try to arrange something if
his continued exposure to the main system threatens its major contents. So yeah,
please help. How do I make him happy? I'd appreciate any insight or advice you
might be able to share. Thanks. -Dekon. <Sorry to say, but I strongly doubt that
you can save a ruptures cucumber. The only hope is probably a sandy hospital
tank with lots of food in the sand and a broad-spectrum antibiotic to
treat/prevent infection to see if this rupture heals. Even that is a long shot
at this point. We really don't know much about how to treat diseases and
injuries of these creatures, regrettably. If you are seeing any progression of
this lesion, I'd say it's safest to give up and remove him from your system.>
Sea Cucumber Curiosity!
Hello Bob and Crew.
<Hi there! Scott F. here today!>
I'm happy to report my tank and all its inhabitants
are in great shape and that's thanks in no small part to your help.
<We're glad to have been of service!>
As soon as I can afford it, I hope to setup a grow-out tank and start
aqua-culturing some of my more prolific corals.
<Excellent! And very ecologically sound- we certainly encourage captive
propagation of marine animals!>
Anyways, thanks again for everything. I write today in hopes you can help solve
a bit of a mystery at the LFS. There, I help take care of their cucumbers since
they don't really know how, nor will they stop ordering them despite my repeated
pleas. I figure if I can't get them to stop altogether, at least I can try to
see that they do it right.
<Most noble of you!>
For whatever reason, their supplier doesn't identify the cucumbers by species,
so every time they order more, something new comes in. This last bunch were
Tigertails (H. hilla). They have separate tanks for more sensitive or dangerous
creatures and since these guys are both, they got their own 75gal with few
fellow tank mates. They insist on putting a few things in to make the tank look
more appealing (not to mention space is tight), so in
addition to the live rock and 2" of live sand there is some Green
Star Polyp, an Umbrella Leather, a couple Purple Gorgonians, a tiny bit of
Pulsing Xenia, a handful of mushrooms, dwarf hermits, Turbo snails, a Purple &
Yellow Tang, a Raccoon Butterfly - I know, I know. nothing I could do.- a blenny
of some sort, a Pseudochromis (sp?), and an Amphiprion
percula or ocellaris (not sure which; they say "True", but I disagree).
The tank has its own hang-on filter with skimmer (not sure what kind) and a
couple of powerheads, one with a Quickfilter and some Phosguard. Dual
fluorescent lights of some ilk, and an actinic, all on a 12hr timer. The tank
has been running for awhile with all residents except the Cucumbers and the
Clownfish, both of which were added last week. Oh yeah, they also put in a small
Condylactis, but at least he's on the other side of the tank from the
Echinoderms. The tank previously served as a hospital for sick fish (about two
months ago, I think) but hasn't been medicated since well before then, and was
tested for copper before being converted to its current state.
<As long as there is no additional presence of sick fish in the tank, it sounds
satisfactory to me.>
I'd like to add at this point that as far as pet shop-folk go, this lot is all
right. They don't lie to people and will caution their customers to the best of
their knowledge when making a sale.
<Excellent for long term survival; and for their clientele!>
They keep their tanks and equipment clean and in good working order. They tend
to the livestock as much as they can and
most of them are hobbyists themselves. With the exceptions of some
overstocking and occasionally ordering animals for which they can't
properly care, they run a pretty respectable shop - by far the most
responsible in the area and one of only two that is exclusively
saltwater.
<Cool!>
Anyways, on too the big mystery....Okay, so the cucumbers
came in looking very healthy; all eight made it through shipping
seemingly fine (no Cuverian secretions or eviscerating in bag). They are young,
4" stretched out, max. The sand is sugar-grade fine and I rearranged the LR to
make plenty of caves and crevices for them to hide in. We acclimated them over a
period of an entire afternoon and within a day most of them were eating (I know
because they were pooping). Then yesterday, exactly a week after they came in,
one suddenly eviscerated. Today, three more did! Three have already been sold
and I've been unable to track down the new owners. One seems fine. My question
is, what's
causing this?!? I tested all the water parameters: spg 1.0235; pH 8.1; nitrate
<10; nitrite 0; ammonia 0; dKH and calcium within normal range. The phosphate
was high, nearly 1.0ppm, but I'm thinking that may have been because they spit
their guts into the water and undoubtedly we didn't get them all with the vacuum
and certainly not right away as in all cases it happened overnight.
<Well, the first thing that you need to be aware of the high level of
sensitivity that these animals have to environmental changes of any kind. They
simply don't take well to rapid changes in their environment, and even
well-intentioned acclimation protocols may result in a damaged or dead
animal...That being said, the evisceration process generally only occurs when
the animal is stressed, which is either due to environmental lapses (unlikely,
based on the conditions that you described) or some sort of stress resulting from
capture, transport, and acclimation. Despite your best effort, they are still
subject to the whims of nature, unfortunately.>
Another thing: today one of the gut-less little guys was crawling around out in
the open and both the tang and the raccoon were actually taking chunks out of
him.
Not a good thing>
I figured they'd stop after a bite or too, but to my surprise they just kept on
eating him like it was a tasty treat. Needless to say he didn't make it and has
been removed from the tank. The others, save those that were sold, still remain.
I know those which have eviscerated stand little chance of making it, but they
are clearly still kicking (as a figure of speech, that is; they don't move
around much now), and since the fish seemed fine even after their macabre meal,
we decided to let them all stay in the tank. Which brings me to my next
question, aren't cucumbers supposed to be poisonous?
<Some are, some aren't!>
Shouldn't the fish at least get sick? Shouldn't all the toxins released into the
water have had some effect?
<If there were toxins released, and if your filtration system and husbandry
techniques cannot overcome the pollution, then this us certainly something that
is possible>
I mean, everything looks fine. I don't get it.
<Let's keep en eye on the fishes and count ourselves as luck here!>
Anyway, my big question is again, why are they suddenly doing his? Is this
species one of the sort that naturally eviscerates on a seasonal basis and if
so, is this the right time of the year?
<I'm not aware of this as part of "routine" behavior. My understanding is that
this is a response to stress. However, some species are known to "absorb" their
own innards to survive for extended periods of time without other food.>
I have no idea if they were tank-raised or caught, nor whether or not it
matters. These aren't the first cucumbers they've had, but they are the first
Hillas. Since I've been helping out this is the first major problem we've run in
to and its driving me nuts.
I feel terrible. Please help. Any insight would be most appreciated.
<Well, first off- don't feel bad! You're doing a great job, and it's obvious
that you care very much about the animals you're working with. As mentioned
above, these are part of a group of animals that simply are very sensitive to
changes in their environment (even if the conditions are good!). Perhaps you are
dealing with a group that are extra-sensitive; perhaps they were initially
collected and transshipped poorly, dooming them from the outset. Or, it could be
that they were unhealthy to begin with. Lots of possibilities; unfortunately,
there is no one perfect answer here. My thinking is that you simply need to try
a different supplier, and continue your slow, careful acclimation with new
specimens. BTW, here is an article in the latest issue of "Conscientious
Aquarist" online magazine here on the WWM site by Jim Fatherree, which addresses
some of the unique aspects of Echinoderm husbandry, selection, and species. Keep
your chin up! Regards, Scott F>
http://www.wetwebmedia.com/ca/cav1i4/echinoderms/echinoderms.htm
Sea cucumber
Hi Bob, I have a question related with sea cucumber..... I've noticed my
Holothuria edulis has the skin wrapped and you can see many white mucus-like
spots along the body, is that normal or some pathology?
this happens since he/she came right from sea...
please write me back as soon as possible, thank u
Daniela Hill
Ecuador :)
<Likely no problem... saw the same species today while diving in Hawaii! And
we're back visiting Guayaquil and Galapagos in April! Bob Fenner!>
Meds
> could you give me an idea of a good broad-spectrum med. for parasites
and
> bacteria, yet is still safe for inverts. this is for quarantine tank.
also,
> is it safe to treat tiger tail cucumber with meds. am expecting shipment
soon
> and would really appreciate your advice. thanks, Carla.
> >>
> Actually, there are NO safe, effective broad-spectrum (not implying
> antibiotics only) "medications"... for parasites or bacteria for
> quarantine... that I would use, encourage others to carte blanche in
> quarantine or elsewhere...
> There are some less-general (though still trouble in ways) therapeutic
> agents that are at times, worthwhile using... but no way to (in short
spaces
> here) relate all the possible scenarios in which I'd use them...
> Some considerable background on these issues ("medications", "toxic
tank
> syndromes", "disease...") can be found at my site: www.WetWebMedia.com...
I
> would strongly encourage you to read them over. Standard operating
procedures
> for receiving, acclimating, and quarantining your new livestock can be
found
> there... all without the express use of "treatment chemicals".
> No to treating the Sea Cucumber with anything but "kid gloves"... you
> upset this animal and it will poison your system.
> Bob Fenner
Sea Cucumber woes, worries
Thanks so much for your help thus far, you are the best. BTW, my leather
opened up and he looks better than ever, again you were right on.
<Ah, good>
EMERGENCY!!!
I have a rather large pink cuke in the take (about 1 inch in diameter and
about 8 inches long). He looks "sliced open" and his white (almost cotton
looking) insides appear to be "draining out!!!!!!!!!!!!!!!!!" What should I
do with this guy?
<Yikes, pull it out! Place in a tank by itself... it may self-repair (they have amazing powers of regeneration)... but in the main tank may be real trouble>
Thanks so much in advance!! Talk to you soon.
Rich
<Have been out of town. Hope this response is reaching you in time. Bob Fenner>
Cucumber Death
I don't know if I "dodged a bullet" or not.
<ya... I almost went to see that Britney Spears movie too. Anthony Calfo>
I recently bought a very interesting looking sea cucumber that LFS told me was safe.
<you are going to have a very rough road in the hobby if you take everyone's word at face value without being an educated consumer (study a
creatures needs/dangers before you buy it for everyone's benefit). At least use a book in the store before purchase for reference>
He /she was in the tank (110 Gal Reef) for about four days and seemed to be cruising around the tank sides and live rock. Then yesterday when I came home from work, he/she was laying in a lump seeming life less. I checked my ammonia level immediately and it was 0
ppm. I found what look to be some yellow entrails on one of my fake plants. When I went to net the creature I found more of the yellow entrails sticking out of one end. Is this the evisceration that you mentioned in your article on
WWM?
<yes, indeed...can be dangerous. Do a water change, use carbon/chemical media and skim well>
Is the cucumber dead?
<not necessarily... they eject innards under duress/fright... but do regenerate them>
Its actually too late because I removed it from the tank thinking that it may not have released its poison yet.
<if you just discarded this possibly still live animal, lets at least learn from the experience. Had you been armed with knowledge before you bought it, this living creature might not have died in vain. Sorry to be a bummer... but truth be told. For your tank, you made the right decision. But as an aquarist, you should have had it in a quarantine tank from go, or could have removed it to there for a chance to live. May I strongly suggest that you read Bob Fenner's
Conscientious Marine Aquarist book? Again, sorry for being the heavy. I truly wish you the best in this beautiful hobby. Kind regards, Anthony
Calfo>
Chopped cucumber
Gents:
Try as I might to do the right things by my tank, I had an unfortunate accident. One of my "turd" cucumbers got its oral end/head into a powerhead and lost about 3/8 inch of the oral end. I quickly unplugged and retrieved the rest of the body. I have moved it to a quarantine tank. Is there a chance it will regenerate, or should I euthanize?
<I would take a wait and see attitude for now since it is in a quarantine tank. Be sure to perform a few extra water changes in the main tank to rid yourself of any possible toxins from the cucumber. The use of Chemi-Pure and
PolyFilter would be recommended, too.>
Thanks for a hopefully speedy reply. Stan
<Good luck! -Steven Pro>
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