Help on ID for this little guy

[tbaum101]

I bought this online about a year ago as I was starting my tank up and it was supposed to be a Trumpet Coral. It only had one head on a stony shaft. I thought it was a strange color but I was new so what did I know. Well it started pinching off and not having another to go off of, i thought this was how they grew. Now I'm pretty sure this is something NOT a trumpet. Any help on ID with this? It's open on the top to all of the heads and seems to have folds..

 

[kchristensen8064]

It looks like a trumpet to me. Purple with green center. Looks like its growing and splitting as well.

 

[thamnasteroid]

Caulastraea furcata, I think. It usually doesn't happen in the wild, but I have seen these guys become sub-meandro-phaceloid in captivity like this before. Likely just I'm the process of splitting.