yea, i do live in michigan. He has a 75 watt infrared bulb which i put on the hot side. it gets really hot kinda fast so i have to shut it off for a little bit to cool it down. i dont keep it off over night though. i have a night time bulb but it only keeps the tank at about 83 degrees on the hot side. is this okay until next week when i get my thermostat? also, the humidity has been okay.(around 55%)