I just measured the temps between the substrate and glass for my UTH and they read 120. I thought it was the top of the substrate to worry about. I feel bad because he has been in there since last night and all day today. I just unplugged it just now. Should I take him out and check on him? Make sure he's not burnt? I just got him yesterday and the breeder said he has yet to eat at roughly 2 weeks old. Should I get a thermostat or rheostat? I am not sure what to use or what it's called. Can I get one for under $20? cuz at petco they want $40 and that's rediculous imo. Thanks for your time and help.