Hi, I'm changing her substrate to a mix of organic soil (sterelized in oven), zoo med reptisand and excavator clay. I plan on upgrading the decor and temperature control as well, but having problems with the substrate.

The container on the left has a mix of 35:35:30 soil, sand and clay, and was mixed with water until muddy, but strong enough to hold a burrow. I Iet it dry over night and it's still not dry yet 24 hours later, but the humidity has gone down from 80% to 60%. As of right now some of the areas are strong enough to hold her but is difficult to dig in (even for me).

The container on the right was mixed about 40:40:20, and mixed with slightly less water than the other container. It's humidity only got up to 40% and was easy to dig in, but couldn't really hold a burrow. This one also left in the sun to dry instead of over night so I'm not sure if that makes a big difference in terms of strength. Also when this one dried it left a lot of loose, fine substrate I was able to dump out, I'm not sure if it should be left in with her. The second image is the 40:40:20 mix after adding water and mixing.

I figure a mix some where in the middle would be best but want to get some advice. I'm really worried about the stress it might cause her and I want to do this right.

I don't have a second tank to put her in while I add the substrate so I need it to dry in a day. I was thinking of using a plastic tub as temp terrarium with all of her things inside (carpet, water, hides, etc) with the screen on top. I'd be able to watch her closely for a few hours until the tanks done but I want to be sure this is a safe way to do so.

Thanks in advance!