I have a 40g glass aquarium with bark bedding and two hides, one on hot side and one on cold side. I am new to having a ball python and have a few questions. Is a under the tank heater enough? Temp's only in the 80's on warm side. Can I wrap three sides of the Tank in aluminum foil to help retan heat or will that freak the snake out? I am thinking I need to add a CHE for more heat. The accurite thermometers at walmart how and where would one mount those? I just have cheap plastic stick ons for now.