I have a star fish moving about in my tank. Well at least I think its a star. 6 fingers, white with what looks like coralline growing on his back, for camo no doubt. I have never seen a 6 fingered star though. I read most stars attack coralline algae which is no good for me since I have been trying to grow it. On a side note, I just had a heart attack. My Coral Banded's shell was floating on top of my LR. I thought he died. Didn't occur to me that shrimp molt just like other shelled inverts.