No, I did the under tank heater, on account of how poor I am, lol. But his temp is never really what I'm worried about, when I move back to AZ even room temp stuff is hot! Its the humidity that I worry about. But I'm sure I can make it work. Man, I'm glad I joined this site, I'm learning a bunch! I think Nathan is a bit more active than a normal, python, but maybe I'm wrong. I mean, when in his tank he's usually curled up and hiding, but about twice a week I have to take him out and let him roam around, or he seems to get all frustrated, poking around to be let out. As soon as he's had his fill of exercise, he curls up and I put him back in his tank, and he's happy again. Is that normal?