Bali cultured two years ago, now its a colony. But of what??

[franklypre]

I got this from Blue Zoo about two years ago, fragged it up and put pieces here and there and this is the only one that did well. It was in lower light for a while but has been under the 400w for a while now and I'd like to know what it is? Thanks in advance.

 

[Frick]

The growth is throwing me for a curve. My first guess would be kimbeensis http://sdmas.com/corals/444.php