Sun Coral going bad?

[sttaylor]

I have had this coral in my tank for the last six weeks or so, and it seemed to be doing very well. Last night I fed it mysis shrimp and it ate greedily as usual (it has been getting fed 2-3 times a week). This evening when I came home there several polyps that had this grey/green crud on them near the edges of the tops, sort of looked like poo after a long beer night. I tried to blow it off with a turkey baster, and it came off along with a bunch of yellow tissue, in some places all of the way to the skeleton. Any ideas? I have moved it to heavier flow.

Tank chem. as of Saturday:
Salinity 1.025
ammonia 0
nitrites 0
nitrates 5
Didn't do Ca, Mg, KH on Sat.
temp stays right around 80F

Scott

 

[dendro982]

I had seen this poo too, it went away without affecting the coral's tissue. It started to lose tissue before or after moving to heavier flow? Could it be too much and tearing tissue from skeleton? Just a thought. Mine are doing well even in the flow, moving the tentacles.

The only tissue loss was when the sun was stung by nearby frogspawn or hammer. Somebody told, that recovery should be fast.

When other LPS have tissue necrosis (mostly brains), I removed the dead loose tissue by turkey baster (some not too forceful siphon or pipette will work as fine), then run carbon and the better, frequently changed filter media for a some time. Most recovered.
Not much help, sorry. My knowledge ends here.

 

[sttaylor]

Thanks for the input dendro. It was looking better last night. All of the unaffected polyps were fully extended, and even the damaged areas showed signs of life.

Scott