T5's and 2 Koralia 2's.
I think it was the small starfish eating on it. I took out the brown birdsnest (that had 2 starfish on it) and threw it out. We'll see how the green birdsnest does.
I've been told by the lfs and on here that t5's should work for a birdsnest. I have a green birdsnest in the tank now that I put in about a week ago, and it seems to be fine for now. I'll just keep an eye on it and hope it does well.