I.D. please..

[blk822]

Well this brown stuff appeard on my rock a while ago but never grew. I moved it so it could get alittle light and it started to grow. I then move it again to more light and now it grows pretty fast and I notice very small tenticles out on it sometimes. It is fuzzy and brown , any help would be great...Thanks. P.S. ignore tha aptasia I have shrimp working on them.

 

[bang guy]

Can't tell from the pic. I would suggest Porites or perhaps an encrusting Gorgonian.
If the tentacles look like little hairs it could be Fire Coral.