i use a uth on 1 side and a light on the other for basking the uth is hooked to a thromstate with that set up its easy to control hum.My bp burrows like crazy, the sub strate will be neat and flat at night when I get up in the morning it looks like any army of moles on crack were in their. In the wild bp hunt in burrows, I dont know if they hunt crack addicts in the wild though!