Got free frag and absolutly no idea what it is

[BlackBeardPete]

So I've been researching and I'm left with nothing, the guy that gave them to me didn't know either...they spread out with what looks like tiny tentacles in the outer perimeter and during the dark night it shrinks up really small... They have been growing pretty fast to where I had to glue them to a rock, they outgrew the frag plug in 2 weeks I guess I just really want to know what it is, anyone think they can help?

 

[oscar650]

So I've been researching and I'm left with nothing, the guy that gave them to me didn't know either...they spread out with what looks like tiny tentacles in the outer perimeter and during the dark night it shrinks up really small... They have been growing pretty fast to where I had to glue them to a rock, they outgrew the frag plug in 2 weeks I guess I just really want to know what it is, anyone think they can help?

Kind of hard to see. I was thinking mushrooms initially but I am guessing it's a type of leather coral (Sinularia dura).

 

[BlackBeardPete]

Right on the spot awesome the cabbage coral is exactly it
:deadhorse1: should of known thanks