I picked up a couple of lr's the other day and last night was looking in some of the openings and saw a sm. brown claim which was still alive. It's only about a 1/2 long no idea what kind. On the other piece of rock there was a 1/2 dk. blue mussel that looks cool. Q. Do most of the claims and mussels need strong lights to live? One more Q.I have read about how the flame scallop will die after a short time[I wouldn't have got it if I knew that , my falt for not reseaching it first.] Do you think by running PS and UVs have anything to do with removeing from the water what they may need to live?I've been feeding it b-shrimp/MarineSnow, just wanted to hear what you think.