What happened to my coral?

kirtdog

Member
Can anyone tell me what is going on here? It looks like the flesh is deteriorating. I have another one in my tank and it is doing fine. Please tell me it isn't something eating my coral.

Lighting- 6 t5 retrofit icecap 660 and 430
PH- 8.2
kh-9-10
calcium 400
mag 1200

100_1349-1.jpg


100_1350-1.jpg
 
did you dip it before putting it in your system ?
what's your alk ?
anything else you've done in the past couple of weeks (new bulbs, gac, gfo, aa's)
 
I think your Mg level is too low while your Ca is OK (or you might go to 430), for Mg try to achieve 1300. I believe that this would stabilize the problem.
 
Is that area to the right a sponge or part of the coral's base?

What is your phosphate level?
Do you dose anything? If so how much and how often?
 
Magnesium at 1200 wouldn't cause that.

It looks similar to a disease I saw in one of my coral books- think it's called "white line disease." I'll try to look it up tonight when I get home. How quickly is it spreading?]

Also, what are the red things on the coral? The picture isn't that great, but they look a lot like flatworms. I guess it's possible that you have acro eating flatworms (hope not), but the symptoms don't match that well, so I'd guess not.

CJ
 
those little red specs on it look kind of like flat worms to me but its hard to tell in the pic, otherwise ive never seen anything do that before unless it is just bleaching out slowly and still has some color left to it
 
Sometimes SPS corals just do that. Its really hard to pin point your problem. I had that happen to an Oregon Tort in a tank with lots of other SPS that were perfectly fine.
 
That whole area is the base of the coral. The coral was placed in the tank about a year ago and has encrusted that rock. I will have to check the phosphate level when i get home.
 
OP:

I've EXACTLY the same problem you had, on the base of a colony of what I believe to be either an A. Cerealis, A.Valida or A.Nana (can someone help me ID it?)

I've had this colony for well over 1 year, from my old nano-reef tank, and it made the move to my new 65G without much problem, except the color faded a little (losing the purple tips after the move), and about 1-2 months ago it start showing the same "STN" in the base of the colony.

When this whole thing happened, the top part of the colony was in very good shape, and didn't seem to be bothered by the STN happening on the bottom, it was showing very good PE, coloration was improving with the purple tips coming back (after I put it under my 15w LED bulbs with optics, measuring some 1000 PAR), and since it's encrusted onto the live rock there's no way I could take it out to dip, so I simply didn't do anything.

At first I thought it was some AEFW, I've used a turkey baster and give the base a few good squirt and didn't see anything get blown off, and I also didn't see any bite mark anywhere else, so I figured it shouldn't be AEFW.

I've then tried to keep my Ca/KH/Mg as stable as possible (I'm on dosing pumps), my Ca is around 400-420, KH around 7, and Mg around 1350. Then two weeks ago I've start seeing new growth along the edges of the STN burn marks, and to my relieve it seems like this STN had stopped.

Here's a recent photo of the colony:
DSC_3764.jpg

DSC_3760.jpg
 
Last edited:
Thanks acrotrdco. A glimmer of hope..Today's parameters

salinity- 1.022
pH- 8.4
kh/alk- 9.9dkH/3.54 meq/L
Ca- 380 (gotta raise this up)
mag- 1200
 
I see AEFW eggs on the base of your coral. It is unmistakable..trust me.

I would recommend tossing that entire coral and make sure to get all of the tissue broken off from the rock.

Depending on the health of the coral, you may salvage the top 1/4 of the coral where there is a smaller chance of there being eggs, it will have to be dipped of course.
 
As I mentioned, try to reach the MG level at 1300. I had exactly the same problem with you and some of my SPS seemed to have STN. You don't have to loose anything"¦
If this Is the case the STN will stop and you will have positive results.
 
I am not sure what to do now. I can raise the Mag and hope for the best but if it is indeed the aewf, I would like to take care of it now.
 
See attached I have circled what I believe to be groups AEFW eggs, I put tiny red dots on other areas that might also be singular eggs. Double check upon close inspect that they match these:
http://www.leonardosreef.com/guide-to-aefw/

Logzor,

Due to the poor quality of the photo, I'm not as certain as you're saying those are egg clusters of AEFW's.

My colony of A.Cerealis also have something that looked similar, but it's nothing more than debris and algae growth, I've used turkey baster to squirt it many times and I'm pretty sure they aren't AEFW's.

Therefore asking the OP to throw away the entire colony when we're uncertain if it's indeed AEFW, is kind of unnecessary and a waste.

OP, do you have any friends with a DSLR and a good micro lens, so you could take a close up shot at the base of your colony? Right now it's just too darn hard to say what it is.
 
Logzor,

Due to the poor quality of the photo, I'm not as certain as you're saying those are egg clusters of AEFW's.

My colony of A.Cerealis also have something that looked similar, but it's nothing more than debris and algae growth, I've used turkey baster to squirt it many times and I'm pretty sure they aren't AEFW's.

Therefore asking the OP to throw away the entire colony when we're uncertain if it's indeed AEFW, is kind of unnecessary and a waste.

OP, do you have any friends with a DSLR and a good micro lens, so you could take a close up shot at the base of your colony? Right now it's just too darn hard to say what it is.

I agree it is too difficult to determine 100% what it is, this is why I asked to confirm based on the pictures of eggs on the link that I attached, I should have been a bit more clear. At the time I was almost certain, they look identical to eggs that were present on my own acros (I have since eradicated them). Wait for a 100% confirmation before taking any drastic measures such as rigorous dipping, cutting, or removing the colony, etc.

It should be pretty easy to confirm/deny if they match the pictures in the link (unless the colony is in an awkward place where you can't see it very well) or are algae/debris, eggs clutches are very distinct looking. A better picture would be very helpful.
 
Looks like the STN didn't stop, but it's not spreading upwards.

Interestingly this is very similar to the base of my A.Cerealis colony. Mine had totally stopped STN'ing and the growth of new tissue has actually reclaimed some of the area covered by algae now.

My Alk has been very stable around 6.8-7.0 dKH lately, I'm not sure if this is the cure but again try to make sure your water parameter is as stable as you could.

p.s. did your photographer friend agreed to take some micro shots for you?
 
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