A couple things I notice about your set up. 1st, Beardies need complete darkness at night to cool down and sleep. If your house stays 65 or above you need no additional heat at night. If your house gets below 65, you can get a CHE (ceramic heat emitter) which gives off heat but not light. 2nd, your UV. Coil type lights are not recommended. The UVB reccomended on this site is the reptisun 10.0 tube type. You can get an under the cabinet light fixture to put it in for like $8 at Walmart. This can be mounted inside the tank with either Velcro or command hooks. This needs to be about 6-8 inches from his basking spot. Also, what are you feeding him, how often, and are you using supplements?