Hi all!! We just got our second snake (first is a Ball Python and now we have an albino corn snake) this past week and I'm having a hard time getting the temperature in his tank right... The warm side is fine set at about 81F with a heat lamp (60W blue day bulb) and under tank heater...but I'm having an issue getting the cool side low enough. I can't get it below 79F and it's very frustrating... My ball python has a nice 10 degree difference (different temps obviously)... Any suggestions? Thanks!!!