I checked the humidity in one of his hides with a pet store gauge; looks like it is about 65%. other areas above the dirt are 55% right now. I didn't bother checking the basking area.

Your question reminded me to finally figure out how to seal the 1/8" gap at the door that is probably letting moisture out. Just bought some door sealers from the hardware store. I'm hoping this makes a big difference. Other than that, I plan on watering the dirt at least 3 times a week and see how the humidity is. Have you ever had issues with mold forming in/om the substrate?

thanks much,

P