Identification.

[magic]

I’ve kept zoas for years but lately I’ve had some difficulty. Some of my colony’s have started to close up and act unhappy. This accounts for about 5% of my overall stock. They seem to be effected by something of a disease or pest nature. I’ve included a photo of one colony. Can anyone identify what may be going on?

 

[silverado61]

Just wanted to let you know your not being ignored. Someone should answer soon. I'm more of an invertebrate guy myself.

 

[lmforbis]

I’ve never had any luck with zoas

 

[silverado61]

Try target feeding them frozen. If they sense food in the water maybe they'll open to feed.

 

[2quills]

If I had to guess based on the image I'd say a pest has been chewing on them.