She got him in January 2015 from Petsmart. They only have a 12" Zoo med hood with a repti sun 5.0 UVB 120V compact bulb. A zoo med mini combo deep dome fixture with a 100 W basking bulb and a red 100W bulb. Mystic has been very lethargic and lazy for quite a few months. He now has a new Exo terra tank 36"x18"x18". His tank seems to be around 80-85 on the warm side, the cool side is where the compact 5.0 UVB fixture is at. They don't have a thermometer on that side. We have the air-condition on in the house, we are in Maryland. Will the mini combo deep dome fixture work with the bulbs we have, or should we get strong bulbs? it says 200W Max in that fixture. Is the red bulb a good choice? That is what came with the 29 gallon enclosure when they bought it. So the fixture for the tube T5 Repti sun should be 24" or 36" inches mounted on the inside of the tank? They don't seem to understand what he needs to be happy and healthy. They were not prepared when they bought him. They just got the enclosure package and put him in there. When Mystic was young he was would run around for the crickets, but now he does not seem energetic. I take him outside sometimes so he can get some fresh air and listen to the birds. The other night I had him in the living room walking around and the next thing he was missing. It took all night to find him, he was under the TV stand in a dark corner. Im going to try a get 2 digital thermometers, maybe from Walmart so I can tell what temperature it really is. As I said I'm the only one that cares. Thanks so much for any & all your help.