I have my ball python in a 20 gallon glass aquarium. Im haveing a horrible time getting the temerature and humidity right. Ive read the "Glass tank setup..." guide but none of my local pet stores have thermostats. Im now useing a 60 watt daytime heat light, with two small undertank heaters.. he constantly stays on the cold side.. Ive also tryed the tinfoil and ducktapeing the top and I still cant control the humidity. Please try to help me xD

Thanks, Matt