Question. I know that my sav should have two feet of sand/top soil mixed 50/50. My question is how does the humidity stay constant "under ground"? Doesn't the heat of the enclosure dry out the dirt? How can I maintain the humidity level above ground, and maintain the proper humidity of the substrate? Also, should I rely on him digging a hide in the dirt, or still provide one on top also?
Thanks,
JC

