Ok so I don't mean to steal this thread or anything but I have a related question. I built a rack and fitted it with heat tape and a reptile thermostat (I think it's a herpistat?) anyway I'm having issues keeping my temps consistent and I know the reason but not the solution. The probe for my thermostat is too big to fit between the tubs and the rack so I have the probe in the tub. Of course the snake moves it and the further away it gets moved from the heat source, the more the heat tape heats up to get that probe to read 90. Is there a thermometer that has a flatter probe? Or should i just get a dimmer and monitor/control the heat manually?