aftgurl:
In this tank, because of the proximity of hidespots to the water source, the type of substrate and the fact that I mist one side of the cage every couple days, the humidity seems to stay ideal. If during winter I find that the humidity is not acceptable, I will usually add some type of moss under one of the hide spots that you see on the right side of the tank. So far, shedding seems to be going very well, so I'm really pleased with this organic potting soil that I'm currently using as a substrate.
It's important that I note that my quarantine tank for another fat tail has a substrate of outdoor carpeting. In that tank I do use a designated humid hide which she spends most of her time in. That reminds me, I must go mist that humid hide now.
Thanks for the good question!
Adam