I had gotten one yesterday from Avarium, my boys love it, they go over to watch him do his thing. I was freaking out this morning because I hadn't seen him out by noon, I took my tank apart, all but the big piece of live rock, just cause it's too big to move. But I got sad thinking it had died and was bummed! Bu then sitting here eating dinner I saw his reflection on the tank and I was so happy to see him out and about again!! Do they tend to hide a lot? My boys don't bang on the tank or anything like that to scare them.....