A few days ago he went flipping around in his rock house upside down even and I thought he was stuck but when I touched his tail sticking out a gap he jumped away and then turned back to the rock and rolled with his head in the crevice I made before hiding behind the wood. Now he's hanging out in the rocks and around the water dish. Maybe he's going to shed? I don't see any difference in his appearance and I don't see anything on him. I misted the tank well yesterday.