ID Please

[Midevil]

This started growing on one of my zoa rocks. Can anyone ID this. Looks like there is a little yellow mouth in the center. It's driving my wife crazy!
Thank you in advance!

 

[GBRsouth]

I'm guessing bubble coral. But it is a guess.

 

[Michaelnguyen714]

Might be a type of mushroom?

 

[F i s h y]

I have never seen anything like that before. My first thought was mushroom coral but it really doesn't fit. #reefsqaud any ideas? Its nicely colored.

 

[PatientZero]

I would guess a galaxea. Hard to tell from such a small piece though.

 

[PTXReef]

What does the skeleton look like (if there is one)? And at night when it's retracted?

 

[Midevil]

What does the skeleton look like (if there is one)? And at night when it's retracted?

It tightens up but never really closes all the way like zoa's or palys.

 

[paraletho]

Possible plate coral. The stalk looks like it could be a generation site. I had this happen in a zoa frag once.

 

[sixty_reefer]

Really cool, almost looks like the zoa just bounced