What type of coral is this?

[trinidiver]

Can anyone tell me what type of coral is this? It was really a hitchhiker on a small frag that I got and thought it was nice. Little did I know this was the worst thing. I thought GSP was bad.............. this has started to grow all over some of my zoas. If I had only known when I first saw it to.... :uzi:
I would of been good.
I am thinking about buying the majano wand to kill them out. May the force be with me........:blown::blown:

 

[NanoReefWanabe]

looks like some type of anthelia...

does it have a skeleton, or is it just fleshy?

 

[kjboggs]

Anthelia, spreads like wild fire. Isolate the rock or get rid of it or it will spread everywhere.

 

[ttboys]

+1 Anthelia, had to destroys about 30#live rock to get rid of it, very swift to grow