I took over Bryan's 15g nano when he got the 72g up and running. Up until I got it, it was only housing a shallow sandbase, a few rocks and some cluerpa (sp?) Since then, I've gotten 4 fish (domino, jewel and yellowtail damsel and a 6 line wrasse) as well as a spikey star, a featherduster and a fire scallop. Everyone's getting along and the tank looks good. I did have one freaky thing happen last night though. I checked it out in the afternoon and couldn't find the scallop and thought maybe the fish finally had it for supper. Turns out the scallop had somehow climbed about 6 inches and attached itself to the underside of one of my rocks. I knew they had a foot to anchor them in sand, but how in the heck did he do THAT?? 