ya they are doing just great i bought a electric thermometer that has a probe on the end so i can test the water temp as well as the normal temp of the enclosure. I live in California so it barely gets really cold. but if it is cold i was thinkin of turning my heater on for like 2-3 hours in the morning to heat it up a little then i throw a towel over my screen lid to keep some of the heat in and shut the heater off to maybe heat up the tank a little for the cold season days would this be a good idea or does anyone do anything similar to this???