What is on my Zoas?

[thefullgonzo]

Have a zoa frag with some orangish stuff growing on the base of the polyps and the ones with it are not opening?

 

[ndz98]

Maybe it's some detritus or in eaten food getting caught in between the polyps. Do you have a decent amount of flow where that frag is placed?

 

[thefullgonzo]

Yes, I have good water flow there. Removed the frag and did a dip in revive and put it back in. I adjated it in the dip and nothing came off...

 

[joshporksandwich]

It looks like sponge. You can remove with your hands, tweezers or a toothbrush. Be gentle

 

[Coral Freak]

I agree it's a sponge