Zoa colony is not looking good

[lorenz0]

1 of my zoa colonies is not looking the greatest and i need some advice. I looked all over but i need some help since i couldn't figure it out.

They are all extending but the heads are shriveled up and the mouths have some black stuff coming out of it. all my other colonies look great, just this specific one.

also on a 5 star polyp the part that never attached to the rock looks like they have passed away and there are these white warm looking things on it they haven't moved. i am just going to cut it off since the rest all is all good condition but wouldn't mind knowing what it was

[UnderTheSea]

can you post a pic? what is your livestock? have you tried a freshwater dip?

[Red Coral Aquariums]

lorenzo

Try finding a new spot for your zoas as they could be getting too much flow or not enough light.
With the GSP do cut off any part that looks dead and get it away from the healthy attached part.
Pics would be helpful but try these first.
Kevin