coral idk what is

[dgordon2009]

what kind of coral is this it started apearing on my live rock now its opening up

 

[chichimom79]

Those are zoanthids. Great hitch hiker! :)

 

[Bifferwine]

Button polyps. Similar to zoanthids.

 

[fastrd400]

+1on the button polyps.

 

[chichimom79]

I fail :(