Pest, Disease or ?

[SmoothSmoke]

I noticed tonight aome white stuff inbetween my zoa polyps. The same white stuff is on the same zoa type. But both are opposite ends of the tank. My other zoas do not have this. Both affected frags were actually 1 colony that I split up.

 

[BiG-D]

No they are pineapple sponges signs of a healthy reef tank harmless filter feeders.

 

[SmoothSmoke]

After having a terrible reef day. Thank you for some good news!!!!!!!!