My tank is in the living room of my house. I've noticed that when I'm at the computer desk in the other room (which I can still see the tank my fish do the strangest things. When I'm in the living room they act just like normal fish swiming around or laying at the bottom. But when no one is in the room they are like kids who's parents left them home alone. They move driftwood, stir up the sand or just chase each other around. My red O will actually look at his reflextion and flare his gills and charge the tank. Does anyone else notice strange behavior when their not in plain sight of their tanks?