Since we have 5 of them now, with the distinct possibility of breeding in the future, I decided it was time to start a rack for my Ball Pythons. The plan so far: 8 clear sterilite tubs, each approximately 17x34" - 6 inches deep. Housed on a rack made of plywood, sealed with polycrylic. 11" flexwatt tape under one end of each tub, all run on a thermostat. LED indoor/outdoor rope lights along the back in order to have a photoperiod. This will be run on a timer. Keeping it simple. More concerned about function than appearance. Not painting or staining anything. Husband cut the wood for me yesterday. Spending today sanding, and applying layers of polycrylic. Right now, the shelf boards (each 18x36") are spread out on my kitchen floor. Later this evening, or maybe tomorrow, we will begin assembly. For the thermostats that come with a probe, how does that work with a rack system? I can't place the probe in a bin, because the bin has to move regularly, and would tug at the cord. Do I place it over the flexwatt between the back of the bin, and the back of the rack?