I can vouch for Nick as well. While my substrate was reading 94 (still warm for a hot side) my tub was running 124.7. It's a good thing I run the setup for a week before adding any snake. I will be adding a thermostat as soon as I can. Until then, my new pastel will be in the same setup that works for my other two (a 20g aquarium with a light). Haven't had a bad shed out of any of my others. Wanted to move to tubs to save money, but you still have to control that heat.