so I finally got my first ball python. but unfortunately after reading around the forums I think the guy at the store didn't give me the right information about my tank setup. here is what ive got right now: 20L glass tank, aspen bedding, 75w heating lamp, under tank heater, and the hide and water bowl. this is all what was recommended that I use(I already had the tank). temperature's are 75 cool side, 85 warm side. lamp turns off at night, under tank heater is always on. the humidity is around 50%. ive also read that the tank should be blacked out on the sides(mine isn't), how necessary is this. please let me know what you think as I would like to get it set up good as soon as possible if this isn't acceptable for a ball python.