I have about 1.5" of vermiculite that is slightly packed down w/ 1/2" plastic spacers to hold the grate off of the vermiculite. I spoke with a breeder that's a friend of mine and he suggested using Press N Seal. He said that the Sterilite 6qt tubs don't seal very well and too much moisture may be escaping. I have since re-sealed the tub with Press N Seal and we'll see what happens. If this doesn't seem to work, I will try adding more water.
How long should it take for the dimples to pop back out once things are corrected? I will still try to get pics later today.
Thanks for the help.