He sleeps in his water bowl? is this abnormal or what, even if the light is off he still sleeps there, and if its on he still sleeps there, no matter what if he sleeps he is in there. is this weird or what should i do, and he gets really dark, if i have the light on for a few hours and he isn't sleeping and active he is bright and kind of yellow, but if i leave it off for like 3 hours i come home he is in his waterbowl and like almost black