Apptasia perhaps?

[JMM744]

Not sure though.

 

[saltyfilmfolks]

coral.
colt or kenya tree maybe.

 

[JMM744]

 

[JMM744]

Closer picture . Might be too blurry .

 

[Maritimer]

They don't look much like Aiptaisia to me . . . They're not GSP, as there's no "mat" connecting them . . . They _almost_ look like the polyp stage of some jellyfish, but . . . . .

They're pretty cool!

~Bruce

 

[JMM744]

It/they came on a Coco worm hard Shell. A piece broke away and got turned over and these guys started to develop. I do have apptasia in the tank but it does look different to me.

 

[Bmartinez76]

Looks like Xenia but I'm no expert.

 

[Sharvey103]

+1 on the Xenia