Dark ball under Zoa polyp

[Cameron]

I was feeding my fish when I noticed a dark greenish brown ball underneath my zoa's polyps. Any idea of what this could be? I tried to look it up online, but I couldn't find anything.

 

[Cameron]

After a bit of reading, I'm guessing that this is bubble algae, but I still have no clue. Any help is greatly appreciated

 

[steelheader.262]

Looks to me like green bubble algae.

 

[joshporksandwich]

buble algae. Emerald crabs eat them

 

[NanaReefer]

Pull the frag out, gently remove bubble algae with fingers, replace frag [emoji2]

 

[Cameron]

Turns out it was bubble algae, I was able to pull the frag out and get it all off. Thank you guys for your help