Hi everyone. I recently purchased my first ball python from Petco ( I know I should have done some research first but it is to late and everything seams to be working out well). I currently have a 20 gallon glass tank and I am having some problems with the heat. I have a uth on one side with a 100 watt red light. I am consistently keeping that side at 85 degrees. The other side stays around 75. I keep a wet towel on top of half of the screen top and it keeps the humidity at 60%. I can figure out how to get the temps up any higher. Living in CT my house stays at 65 in the winter (can't go up any higher with the rising oil prices). I am just wondering if these temps are acceptable? Also I heard you can tell if it is a male or female by looking at the tail. Exactly what do you look for? Any help or advice would be greatly appreciated.

Thanks
Mike