UTH's under all of the tubs and a ceramic heat emitter to raise the ambient temperature in my closet to about 82 degrees. Hot spots stay about 90. I had lowered the ambient temp. for breeding season though. I don't think that could of had anything to do with it. I have had some issues with keeping humidity up in the past but it has been pretty steady in the 50-60% range the past few months after I added an automatic mister. Then again you know alot more about python's then I do BGs so if you see something wrong with that I am open to some help because I don't want to loose any more snakes.