Unknown Sea Star 3/10/09 I have had this critter in my reef setup for two months now. I have been noticing some interesting things happening that has led me to believe him to be not reef safe. As soon as the lights go out he seems to go after my two very large turbo snails and my electric blue hermit crab, without luck due to their size. I caught him this morning with one of my nice new fancy conch snails in his mouth. I pull him out of the tank (pulling the snail with him) and banished him to the sump until i can find him a new home. Any ideas what this guy is? i was told he is a reef safe sand sifter. Thoughts? <Mmm... is a sand sifter... looks like a juvenile Archaster typicus... is NOT "reef safe", but a consumer of most all small in-fauna (and above) vagile invertebrates. Bob Fenner>