Thanks. I'll try that. I've been using the 100 wat not directly over the uth because it seemed like the surface temps were getting too hot. I'll get a thermostat of the uth and that should take care of it. I have the water bowl over the uth and by covering the top with towels the humidity was pretty stable at 45%, so I figure if I mist twice a day I should be good there. I'll just pick up a 6o watt black bulb for the cool side and should be good. Using aspen right now, but will probably switch to the cypress when that runs out. Thanks again for the help.