Hey I got my tegu rex back in march the guy at the pet store told me to just put a heat rock and some bedding in a 20 gallon tank and he would be fine. I know now that is really wrong so I've got him in a 45 gal I think with one side 110 and other to 85-90 and I'm in the middle of making him a new cage. But I think he's really small, he is 12 inches from head to tail and he been sleeping all day for the last week, is everything normal? I appreciate any input and ill try and get some pics on here later tonight