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FAQs about Mussid Coral Health/Disease, Pests 1
Related Articles:
Coral Pests and Disease; pests, predators, diseases and conditions
by Sara Mavinkurve, Mussid Corals,
Related FAQs: Mussid Health 2,
Mussids 1, Mussids 2,
Mussid Identification, Mussid
Behavior, Mussid Compatibility,
Mussid Selection, Mussid Systems,
Mussid Feeding, Mussid
Reproduction, Stony/True Coral,
Coral System Set-Up, Coral System
Lighting, Stony Coral Identification,
Stony Coral Selection, Coral Placement, Foods/Feeding/Nutrition,
Disease/Health, Propagation,
Growing Reef Corals, Stony
Coral Behavior, | 
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Cynarina question... hlth. 1/8/08 Dear Crew, <Trina>
I have had the following Cynarina for about 8 months now. For the
last 6 months or so, it has had this bubble that has gotten bigger
over time. It got knocked over once or twice by some out of
control crabs but that was months ago. Would the fall cause this
"Tumor" and can anything be done to help it out? Thanks, Trina
<I don't know what this is... but would try to excise it (with a
sharp, single-blade instrument) outside the system. Bob Fenner>
Re: Cynarina question, hlth. 1/16/08 Thank you
for your help. I did as you suggested and cut the excess tissue
away. The Cynarina took the procedure remarkably well and
expanded shortly after adding back to the tank. The tissue has
appeared to heal, or at least be in the process, but it looks as if
it is expanding again. Seems as if I am going to have to schedule
the coral for biweekly surgeries!!!! Any other options? Trina
<Mmm, daubing the area with Lugol's, other iodide/ate solution post
trimming. Bob Fenner> | 
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Scolymia - Septa tissue damage 2/24/06 Crew,
<Jason> Thank you for providing all this great information and I
will try and be both detailed and brief! I have recently purchased a
Scolymia - red button which I am having some problems with. First my
parameters: 50 gal system, CPR Bak-pak skimmer, CPR 24" Refuquarium,
activated carbon running in a small power filter, T5 lighting 1
Daylight and 1 Daylight/Actinic combo on a 12hr timer. Water is great
with 0 nitrates, 0 ammonia, 0 nitrites, PH 8.1, calcium is 400. My
salinity is 1.025. Additionally I have 45lbs of live rock, and 3" of
live sand. I do small weekly water changes of 5 gallons. I have 1
hairy mushroom, 1 small button polyp, 1 large button polyp, and a 1 week
old Scolymia. I also have a Maroon clown pair, 1 three stripe damsel,
and a dwarf flame angel. Lots of snails, and some blue leg hermits.
I use mysids, zoo-plankton, pellets, Nori, DT's, Cyclops-eeze, with
periodic Selcon soak in a daily rotation. I try for a good diet
variety applied lightly. My tank is 7 months old, cycled fishless for 3
months. I purchased this new addition 1 week ago at a live fish
store. The creature had been at the store for several months and I drip
acclimated it for 2 hrs after a temperature float. I did not add the
creature to my tank before testing the shipping water and matching
salinity... but I think I missed something or did a step wrong. I placed
the Scolymia mid level and in moderate water flow with lots of room
around it. <All sounds good/fine thus far> The night of the
addition the Scolymia became mucousy... probably a form of shock and
some of its septa pierced the flesh. <Very common with just-moved
mussids> Over the next week it looked better day by day, no mucus
and the pierced tissue seemed to be recovering. Today and yesterday it
look significantly better and was inflating its polyp/flesh. This
evening however I arrived home to find that all of the septa had pierced
the flesh of its mantle and the tissue had de-inflated. I have read
in the archives that a few septa poking through isn't uncommon (shipping
transport damage) and can probably heal. What I didn't find was the
likelihood of recovery with so much of its skeleton showing and tissue
damage. An additional problem is that the first two septa that broke
through have an algae film on them... possibly limiting its ability to
heal? <The algae are indeed a bad sign> My feeling is that this
was probably caused by me during acclimation (its killing me trying to
figure out what I did wrong), different salinity's LFS at 1.021 then
acclimated to 1.025. <! Very different... would be a good idea for
you to use a quarantine/treatment system and slowly (a 0.001 per few
days) move this animal between these differences> As I have only had
this previously healthy creature for a week it doesn't seem likely that
its food or lighting. Nothing has changed in the tank since it arrived
one week ago. So... can this creature heal with so much tissue
damage? And will the algae film on septa be a cause for concern?
<Yes and yes> Thanks so much for such a great site!! Jason
<I encourage you to add Iodine... likely as Lugol's solution here, and
increase circulation, aeration around this colony. Bob Fenner>
Blastomussa wellsi Troubles 2/18/06 Hello. I (as the title says)
am having some troubles with a Blasto Wellsi I recently purchased. I
bought it about a week ago and placed it in the bottom of the tank in
low flow and low light. For the first few days, it opened fully and
looked great. But then on about the third day, it didn't open
completely. Day by day, it's been opening less and less. I wouldn't be
worried so much about it, but this is the exact say way my last Blasto
Wellsi colony died last fall. I was never able to figure out then why it
died and finally decided it was probably caused by something that
happened before I bought it. Now I'm not so sure. I have since lifted it
up on to a small piece of pvc in the corner to keep it away from the
hermit crabs (they have a knack for annoying new corals sometimes).
<In addition to hermits, do consider your fish, especially pygmy and
dwarf angels and blennies. You may have to observe very carefully to
notice them picking at the coral. Also, in my experience, these corals
are very sensitive to water quality especially those parameters that
can't be measured, like the noxious defensive chemicals of other
corals.> The lighting is two 96W PC 12 hours a day on a 45 gallon
tank. It's been set up for about a year now. As for water conditions,
they're fine (78 degrees; S.G. 1.025; 0 Ammonia, Nitrite, Nitrate,
Phosphate; Calcium 430) as they have always been, and no other corals
(including many zoos and shrooms, a few LPS and SPS, and some rather
large softies) are showing any signs of trouble. <What about
alkalinity? Without proper alkalinity, calcium is unusable to
corals. Also, Zoanthids, mushrooms and softies are all good candidates
to produce harmful allelopathic chemicals that my be harming the
Blastomussa.> Nothing has been done since I received the coral that
would change water clarity (water changes, cover glass cleaning, new
bulbs, carbon, etc.). I think that's all the info I can offer. Thank
you, Kevin <You can try running some carbon to help reduce the
defensive chemicals from the other corals and please do measure
alkalinity regularly and correct if low. Hope this helps. Best
regards. AdamC.> Coral
Healing & Book, V2 Date: Fri, 13 May 2005 Bob and
Anthony: I thought you might find this picture interesting. It
shows both the damage that Aiptasia can cause and the power of a
coral to heal. This Blastomussa achieved this amount of healing
within 4 weeks of me killing the Aiptasia that made the hole. I
used 3 ml.s of vinegar injected with a 20-gauge needle. Also, Zo
is vacationing in Utah. I happened to be home last weekend, so we
got together for lunch on Sunday. It was great to meet him and we
had a pleasant and interesting conversation. That and a recent
WWM query led me to wonder how the second book is coming. Any
projections on publication? Steve <Thanks for sending this
along Steve... the work progresses, though inexorably slowly. B> | 
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Candy Cane Coral 3/8/04 Hi Bob, <Anthony Calfo in his
stead> Thanks for the help with the candy cane coral so far. I
have searched the web and the FAQs for... too long. I am meeting
with a man tomorrow about purchasing a candy cane coral. I noticed
that the color is usually a brown or a green. I am concerned when I
met with this guy that I will not know whether it is healthy or
not. Could you please give me some pointers as to color, and basic
appearance so that I get a healthy specimen. <it's tough to
summarize in the brevity of an e-mail. Obvious factors to look for
would be any recession of tissue, exposed corallum ("skeleton"),
excessive mucus. But before you buy any coral without knowing how to
assess health, please, please, please invest in a good book or two.
John Tullock, Eric Borneman and, if I may say so, my works on corals
are easy to read, popular and informative. For corals with
pictures... I can recommend Eric B's "Aquarium Corals" as your first
choice. Please make the responsible choice and do not buy any animal
without knowing how to care for it first. Caulastrea (candy cane
coral) is fairly hardy and easy to keep, but requires feeding weekly
or more often, and will not acclimate easily to very bright halide
light> Thank you very much, Todd Hawman I should have included
a picture of what was posted on the net by the seller.
http://www.buysell.com/bestoffer/viewoffer.asp?id=26121043 this
is the address to the picture he provides....not sure if it is
actually his. Please help!! <the picture/coral is odd...
appears to be healthy, but the polyps have an inflated look. May
simply be a photo soon after a feeding> Also if this is a healthy
coral... should I start acclimation (in terms of lighting) very
near the bottom on rock?? I have a 90 gallon tank... 24" deep and
have a 4 foot 32 watt fluorescent light. Thank you very much. Todd
Hawman <keep this coral in the top 1/3 of your tank. Fluorescent
lights may be good quality but they are weak (unable to penetrate
water at depth). I do have an article here on WWM specifically on
"acclimating symbiotic reef invertebrates" to new lights. Do seek it
(use the google search tool at the bottom of the index/home page).
Best of luck, Anthony> | 
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Maze Brain Coral Hi I have what I think is a maze brain coral
I've had for a few weeks that seems happy in my one month old tank opens
at night closes during day apart from opening some parts every now and
then in daylight. It originally had some small crustacean things living
in holes in it which didn't bother it at all but they died recently
either due to low pH (7.5) or high spec grav (1.029) which I have now
fixed, or lack of whatever they eat in the ocean and one of the vacant
areas now has what looks like a spider web over it with a funnel area
the creatures were removed as they died. What could this be, will it
harm my coral and should I do anything about it? << I tend to leave
things in for two reasons. One is laziness, as I just let my tank grow
as it may. The second is because I like to see natural tanks be....
well... natural. I like letting them take their course and balance
themselves out. >>I use natural sea water from the area my inhabitants
come from. << That is convenient. >> And what, how often should I feed
my coral? << Good question. Those corals can be directly fed, and I
would recommend doing so once every couple of weeks. >>I know nothing
and live in the country where there is very little information or
product available to me. << I wouldn't worry yet, but just keep watching
it. If the coral tissue starts to recede, then I would suggest fragging
what remains. If it stays the same or starts to grow, then I wouldn't
stress it with fragging for a while.>> << Adam Blundell >>
Saving Lobophyllia (not Silverman) 10/3/04 I hope all is well
with you today. <and with hope for you in kind> I do
need some help in saving my Lobophyllia. My flame angel was nipping at
it continuously and causing it to recede to not much more than a
skeleton. Since I have a 180g tank with much live rock, catching
the flame angel was nearly impossible until I recently moved and had to
drain the tank. Since that time the Lobophyllia has expanded from about
2.5” in diameter to over 7”! Just when I thought all was perfect
(for over a month), now my purple tang has apparently grown to love the
taste of the Lobophyllia. <heehee...> The coral has
once again deflated to a little more than a skeleton. I really like the
purple tang and prefer to leave it in the tank (not to mention I do not
plan to drain 180 gallons of water again!). Is there anything that can
be done to stop the tang from nipping at the Lobophyllia and to keep
the both healthy in the same tank? --Greg <nothing at all... really,
short of separation. Its a compatibility problem that cannot be
conquered by extra feedings, etc. Do consider placing the coral in a
small inline refugium instead - perhaps the best of both worlds.
Anthony>
Lobophyllia tissue recession 3/31/05
Hello, I have a Lobophyllia spp. For 2 months and never has been very
healthy, firstly started with a small body reduction in the upper part
(it was inclined in the aquarium) so I moved it down. But 2 weeks ago it
started to have a severe body depletion, I have read different articles
about corals, bleaching etc and I would like to know if I should move it
down a bit more or any other tip. Thanks very much. <"Tissue
recession" is the most common term for this. Bleaching refers to the
loss of Zooxanthellae (symbiotic algae) and color from otherwise normal
healthy tissue. Lobophyllia is quite adaptable to different lighting
conditions, but in my experience it is quite sensitive to water quality
and the defensive chemicals produced by other corals. I would suggest
thoroughly testing your water and making sure the following parameters
are in the proper range: pH 8.0-8.4, Alkalinity 2.75-4.0 mEq (9-12 dKH),
Salinity 1.025, Calcium 350-450, temp 79-82. If you have soft corals
(especially leathers or mushrooms), it would be a good idea to run small
amounts of carbon and change it weekly and perform 20% monthly water
changes. Best Regards! AdamC.> Cynarina looks sad Bob
I enjoyed hearing you at the MARS meeting and watching your slide show a
few months back in Sacramento. I wanted to ask you about a Cynarina, I
think his common name is a button coral, I purchased in July. He seems
to be slowly shrinking. He still fills up and expands but not as big as
he used to. <Why do you think this is so?> I have him placed near
the top of the aquarium with MH and power compacts. Not a lot of water
movement there. My water tests are good. Calcium at 455 Dkh 9 and 0
ammonia, nitrite and nitrate. I was told he only needs light.
<You know there is more to this> But then I read they do put out
feeder tentacles to trap food. I have never seen this. I only feed the
tank frozen brine shrimp and flake food for the fish. The only other
corals are a Colt and Green Star Polyps. Is his problem food related and
should I be feeding the tank something additionally for the corals?
<Yes> I also read he is a low light coral so I thought about moving
him but I didn't want to make matters worse either. Any suggestions
would be appreciated Thanks Jim Uptegrove <Do look about
more... and try other foods/feeding moda... these are "planktivorous"
species to a large/r degree. Bob Fenner> Problem with
Lobophyllia Dear Bob, As always, thanks so much for this great
site. I have another question that I'm sure you can answer. <I
will try> Last Tuesday, I received my order of a Lobophyllia
hemprichii (red brain coral) and a Euphyllia glabrescens (torch
coral) from a dealer that is well known and, supposedly, very well
respected in the trade. When I removed the torch coral from its bag,
I could see nothing but the white skeleton and a few places where the
polyps were supposed to extend. After two days of waiting, as
instructed by the dealer, the polyps never came out and they just
became shriveled and died. That must have been RTN. <Maybe> As for
the brain, it has not died, but I am very concerned about it. When I
first received it, I placed it in the bottom of my 90-gallon tank and
even shaded it from the VHO lighting for some time. The coral opened
some during the day, but when it retracted, a large part of the
skeleton was exposed. In fact, the "spines" show when the coral is
contracted. <This happens with new specimens> According to our
research, the coral should be of such a size that no part of the
skeleton should ever show and that the whole coral should look more
robust. The coral we received looks so "thin". When it's expanded, there
are pinpoint places that are depressed; and the flesh looks "corroded".
The color is rust red now; it may have been darker and lost some of
it's color, but that is hard to determine. At times, the coral
would expand when the main aquarium pump was turned off, while at
other times it would expand when the pump was turned on. The coral
gives off this rust-colored cloud when the pumps are turned off. This
morning it looked better; however, when I turned off the main pump it
retracted and gave off its rust-colored matter. The dealer says in
their literature that this coral would "slough off" some when first
introduced, but it seems to be sloughing off its flesh and
deteriorating. The aquarium is a 90-gallon reef with all parameters
at or near perfect reef readings. We have a 30-gallon sump,
Turboflotor skimmer, Aqua UV sterilizer, and a water turnover rate of
about 10 times per hour. Other inhabitants look great. There is not a
heavy bio-load as there is just a purple tang, a peppermint shrimp,
some mushrooms, a purple blade, some snails, and a few scarlet hermit
crabs, and three sand sifting starfish. All water is purified by Kold
Steril. I added vitamin C and some trace elements (Vital Gold) by
Thiel, along with Coral Vital by Marc Weiss. Any thoughts?
Thanks for any help you can give. Regards, Michael Rivera <Per
the descriptions of both newly arrived specimens, it does seem like they
were either "in the bag" too long, or suffered some other sort of
shipping insult (chilled, overheated... delayed in transit...). At any
length, you can just wait at this point and hope that they will
regenerate. Nothing in your description points to a difficulty in your
system or handling... Bob Fenner>
Bubbles in my Brain!!! (air trapped in coral tissue) 4/19/03
ok.. I attached a photo, but this morning is the first time I've
seen this occur on my Lobophyllia.. it looks almost as if there are
air bubbles inside the flesh of the brain coral.. <there are
several possible reasons for this not entirely uncommon occurrence.
In the safest/simplest circumstance... some corals simply "eat" air
bubbles (or are fed it trapped in food). As strange as it might
sounds... the deliberate ingestion is done by some of the more
heavily mucous species for the purpose of capturing food and
elements such as proteins that are attracted to the air bubbles
(Yes... indeed like the organics "stuck" to air bubbles in protein
skimmers). In these cases though... the tiny air bubbles are easily
purged. When they are large and apparent as in your case here... it
leads me to believe one of two things... forced ingestion of an
inappropriate food (freeze dried foods for example... that have much
air trapped inside)... or stress. The former is self-explanatory...
and the coral is likely to expel it in time, although you don't want
to make that a habit! In the case of a stress induced symptom
here... there are a few things it could be... and neither are good.
The first is over stimulation (over-driving/photoinhibition) of
corals by light that is too much or on too long (for this species if
only in the tank). New bulbs, cleaned lamps, improved water clarity
(carbon used after an absence), etc... all are things that improve
or increase the quality of light and cause the zooxanthellae to work
overtime to the extent that they produce oxygen inside Cnidarian
tissue that cannot be processed fast enough. The other possibility
is supersaturation of the water with oxygen by a leak in the
plumbing (causing the aspiration of air to super-sat-levels)...
OR... the inappropriate addition of hot water to cool water (during
a water change or evap top off) to make "warm" water which drives
the O2 out of solution quickly (the reverse of super-saturation).
This can occur right within the corals tissue just like divers that
get the "bends" from nitrogen. Not good at any rate.> it's been
fine up until now and the only thing that is changed is that I fed
it chunks of krill last night before I went to bed. <no
worries unless the krill was freeze dried or any food that floats
that world indicate trapped air> is this something I should worry
about? or take caution of? <perhaps... do consider the above
possibilities and why it may have occurred> another thing I was
wondering was that I have a large toadstool leather that stopped
opening during the day... I've noticed polyp extension at night
about an hour after the lights go off, but other than that it fully
expands during the day.. just that there's no polyp extension.
<interesting... generally not a big deal (they do not feed
organismally with their tiny polyps by much. However... in light of
the Lobo's symptoms... the polyps shutting down early does indicate
a possible lighting problem. Are you one of those kooks using 400
watt halides on a 20 gallon aquarium <G>? Perhaps have your lights
on too long (over 8-10 hours on MH... or over 12-14 on
fluorescents). Perhaps changed to brand new bulbs recently? Hmmmm...
many possibilities here.> I'd really appreciate any information.
Jonathan <best regards, Anthony> | 
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Air Bubbles in Coral Tissues ("Bubbles in my Brain") 4/19/03
thanks for the response.. it makes sense on the light stimulation... he
had just been recently moved to a higher point in the tank.. but has
since been moved into another tank in which his air bubble situation
returned to normal.. <ahhh, yes... very plausible and consistent with
our theory. Great to hear that your brain is not so gassy <G>. FWIW...
corals that express such symptoms (air bubbles from excess light as with
sudden move to higher point) can in fact acclimate to the new higher
position in time... they just need to be acclimated slower to prevent
the air bubbles from forming. Use the screen method (suggested in my
articles here on WWM and beyond) to adjust the coral to brighter light
over a period of a couple weeks> and I almost forgot to add.. I LOVE
your coral propagation book.. the wealth of information is priceless
and I've been looking for a book exactly like this for years. Jonathan
<thanks kindly, my friend! Best of luck to you in your endeavors.
Anthony> -Scolymia showing teeth!- Dear Bob, <Kevin here
in his stead> I have had a Scolymia for about 2 months. It feeds nicely
-almost every other day on bits of lancefish nicely soaked in Selcon and
Zoë. Originally it didn't have any 'toothy' extensions or they were all
entirely covered by the flesh. I have noticed that now one or two
protrude. <Likely from some sort of light damage> It inflates nicely and
eats avidly, if slowly -about 25 minutes- what I provide. <That's a good
sign> It is in good light, slight water motion and no nasty neighbors
that would sting. I was a bit worried that the toothy extensions through
the flesh my signal some kind of unhappiness or decay. <The toothy
extensions are it's septa which have pierced the flesh somehow, likely
from some sort of light trauma. If it does not become infected at the
spot where the flesh has torn, it should heal nicely. The only problem
with the septa sticking out is the possibility for an encroaching algae
to develop and push the tissue back further. Keep an eye out for this.>
I like it very much and it is a coral now no longer imported in the UK
<Really?! Why is this?> so I am especially keen to see it do well. Am I
worrying too much? or is there something wrong? Thanks for all the help
on your fab site. <Good luck! -Kevin> Massimo
Unhappy Symphyllia 12/31/03 I purchased a beautiful
Symphyllia about a week and a half ago and it is not happy in my
system. <it really does not look bad in the pic... just
irritated as evidenced by the issue of defensive filaments> It is
mounted somewhat vertically in the bottom of my tank (75 gallon with
260 watts PC lighting). <the lighting is not worry here...
Symphyllia are adaptable to lower light and require heavy (almost
daily) feedings regardless of lighting (they are not sustained
adequately by photosynthesis)> There is some white recession on
the top edge and the bottom of the coral has exuded it's digestive
system in what appears to be small round tan bumps. I have enclosed
a pic that was taken after a Lugol's dip. The little strings that
are in the pic appeared after the dip but are now gone.
<ahhh... no worries then. The recession may simply have been due to
mishandling prior to your purchase. It simply needs time to heal. Do
not move this coral around (or any.. very stressful). Put it in a
good place and simply let it adjust for some weeks. Keep it at a
safe distance from other corals too to allow for growth> It does
not extend it's feeding tentacles at night and has not eaten since I
got it. I've had it in 3 different locations in the tank and this
makes no difference. <yikes! this is a surefire way to stress
if not kill a coral. No wonder its not eating either. The movement
drains significant biological energies> I have read that it can
be sensitive to Xenia and I do have some in the tank. <I
seriously doubt that. In fact... I'm nearly sure of it. Xeniids are
one of the most weakly noxious/aggressive of all soft corals.> It
is approximately a foot away from it. The only corals in close
proximity are a fox coral, red open brain and cup. <"close"
needs to be defined here... but I'll say at least 10" distance needs
to be between corals minimum... and further for aggressive species>
I'm really worried about it dying on me. All of my other corals are
doing great.....it's the first coral I've bought that is not.
<more patience are needed here mate> Other corals are Anthelia
(about 2 feet away) some mushroom anemones (about 2 feet away), and
a frogspawn (about 8 inches away). <the frogspawn is a serious
and present threat... way too close for this extremely aggressive
coral (they do not need to touch... noxious exudations> I have an
Emperor 280, Emperor 400 and a Remora Pro skimmer on the
tank. Calcium is running 400, alk 10.2, nitrates are 2, no ammonia
or nitrites. I have changed the cartridges in the filters so there
is fresh carbon running. What else can I do to help this beautiful
coral? Thanks for you time in answering...... Janey <give it
time and do have a long term plan for the tank. DO not overstock and
please allow room for growth, assuming you hope this unnatural mix
of corals will live long term for you. Best of luck, Anthony> | 
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