One more thing, this isn't related to the tubs, but thermostat... I currently have more tubs than I have snakes. I will be adding more snakes next year around mid year though and will be filling all the tubs, which is why I built this many levels.
I don't know if it would be better to put the thermostat probe directly on the heat tape, like most people do, and set it higher than the required temperature, so that the inside of the tubs are accurate temperature? Or should I have a "dummy tub", where I put the probe inside the tub on a level that has no snake in it, hence setting the temperature exactly where I want it to be?
One problem I noticed is that the lower levels are just a few degrees colder than everything above them. The lower it goes, the less hot it is, but not too much, just 5 degrees from hottest to coldest, I have read about this and expected it, but it isn't as bad as I thought it would be. Anything I should do about this? Currently the rack is boards on top bottom and left right of each tub. Front and back are not covered. (I had a board for the back but it don't fit right with the heat tape wires running out, and figured I don't need it anyway) Perhaps I cover only the lower levels?
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