Anybody having problems with too much heat? At night, I have to leave my lid open on my nano 12 so it doesn't rise above 80. During the day, if left open it drops to 74. I have a heater, but after messing and adjusting, the best I can do to is to keep it at 78. Seems like a pain to keep the lid open at night to maintain 78. The nano has two fans and 3 lights. Trouble is the fans go off when the light is turned off. I hate to run the air conditioner when I'm gone but it seems to be the only answer. Chillers I've seen cost more than the tank. Not going there when the money can be used to buy a new creature. Guess I'm just bitching.