This just sort of sprouted out of no were on my live rock

What is it?

They kinda look like little Clavularia sp. or commonly referred to as star polyps. That would be my guess anyways :)

Not sure if i have welcomed you to TR, so Welcome to TR :)

looks like star polyps to me too.

i agree.. looks like not so green GSP's

I'm not sure about the GSP (Briareium sp) Not 100% sure on the spelling on that. I don't see the purple matting.

I'm leaning towards the Clav sp.

f2titan,
can we get a closer image to see the polyps anything between the polyps