Euphyllia - Help!

[nycjwi]

Hey Randy,
Any idea what could be happening to this Euphyllia? It is starting to happen to a few of the heads. Here are a few pics one under light and one without light. I only have 2 clown fish in here and they have all been together for 4 years so its not anyone pick at it. Would greatly appreciate any thoughts on how to try and solve

 

[hsosa]

Hey Randy,
Any idea what could be happening to this Euphyllia? It is starting to happen to a few of the heads. Here are a few pics one under light and one without light. I only have 2 clown fish in here and they have all been together for 4 years so its not anyone pick at it. Would greatly appreciate any thoughts on how to try and solve

 

[hsosa]

is it happening to all the heads or those two u can cut them out and try a iodine dip . that could stop it from spreading to the other heads. check ur salinity and mag levels

 

[Randy Holmes-Farley Verified Community Expert]

What else is in the tank and how do those organisms look?
Are you monitoring nitrate and phosphate?

 

[MERKEY]

Have you ever noticed your clowns in your euphyllia?

Sometimes clowns love euphyllia to death.

 

[nycjwi]

What else is in the tank and how do those organisms look?
Are you monitoring nitrate and phosphate?

Nitrates are 3.5 and phosphates .02
alk 8.7, cal 445, mag 1312
everything else looks good
PH has been running low so added carbon last night and ph ticked up within 30 minutes so maybe some toxin's in the water that needed to be removed.
During the day they get to full extension but can still see exposures.
Any thoughts on next steps?