What's on my zoas

[mega]

Seems to be hard white stuff on certain colonies

 

[KJ]

Sponge!!

 

[Chris-tico]

yea looks like a sponge.. you can remove it manually

 

[mega]

Ahh! Ok good I have been doing furan 2 dips and coral Rx I've noticed its on only like my pink hippos and red hornets of course my favorite two zoas lol

 

[dwebb1031]

If it's white speckles on the polyps themselves you're looking at zoa pox which will KO the colony

 

[dwebb1031]

All I see is zoa tissue and glue for the frag, unless there's something in the photo I don't see there's no sponge.

 

[Squid]

Keep doing the furan 2 and coral rx just to be safe.

 

[mega]

Anyone else, thoughts?

 

[Sabellafella]

Thats a sponge, if its growing fast remove it, if not its fine to leave

Ill edit this as I take that back, looks like bacteria, its not fungas furan 2 wouldve killed it. If its affecting the polyps by stunting its growth or not opening, i would brush/scrape or spot treat it with peroxide