What is this?

Bought some live rock and this came in on it. Didnt do much for a long while but is starting to look better every day. The pic does not show the color well. Its actually a little pinker than the picture. Any clue on what this is????
 
It's a type of star polyp, if taken care of it will eventually be a large hairy look mass
 
Oh ok... Yeah it started out just bare. As every day passes there are more and more of the heads popping out. Its color is getting better daily as well. Is there any special foods i need to add outside of all the typical ones for the zoas and other polyps?
 
excuse the spelling, but i think its sometimes refered to encrusting briarium. It grows very similar to Green Star Polyps
 
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