I saw your snake on fb. she is a beauty. I noticed you had those stick on thermometers and hydrometers. They can be off 10 degrees in either direction. I would go to Wallmart and in the '"do it yourself" section on the same isle where the outdoor thometers, weather radios are get yourself a Acurite thermometer with a prob around 13.00. it is far better than what you have now. Put the probe just under your substrate and run the line to the cool side and prop the actual thermometer against the glass with the digital temps facing outwards. hope that helps, it sure helped me out.