So I have his light about 6 inches from his head. Is this to close? It's the T8 reptisun 10.0 fluorescent light. After he walked to the other side of his cage earlier today, he has pretty much stayed on his rock laying down with his eyes closed. It was nice seeing him perk up a bit. I put the light in his cage about 2pm and he's been direction under it since. But i'm hoping 6 inches isn't to close?