Anyone else have serpent starfish? I have a tiger one in one tank and a red one in another. I think its funny how wild they go when I add food into the tank. The tiger one usually doesn't come out, I just see legs flailing from different levels of the rockwork. The red one comes out some times. This morning I put a little frozen prawn in the tank (wedged it under a rock) the starfish came out of the rock (i have a larger rock that has a small passageway through it that he often stays in) grabbed the prawn and brought it back into the rock with him. Very neat to watch, no one even knew the prawn was there he came and went so quickly 
