They have a burrow network that goes from one end of the box to the next.

I made burrows in the beginning, but they backfilled them better than a professional landscaper.

My bet is they know best where to dig, not me.

Technical data...

all seams are sealed with carpentry grade hot melt glue, the wood is sealed with 5 coats of dutch boy latex floor sealer, the front window is a shower door with rubber gaskets.

Substrate is fully bio active, no turds to clean, the bugs break it down.

Ambient air ranges from 80-100 degrees, basking 147 degrees, humidity between 60% and 88%.

Two basking spots, one up a tree, one at ground level.

All heavy Items are securely bolted down.

and the icing on the cake, the whole box is double walled and stuffed with the insulation I saved from all my Rodent Pro orders over the years.

Had a power failure for almost 24 hours, and the temps never fell below 80.

These kids are thriving better than 99% of the other unfortunate lizards kept in the US.

and just for the hell of it, a 4 foot UVB 5.0 tube in the middle of the cage.

With these conditions, I have 2 bottomless pits that are eating me out of house and home, yet remain slim and fit. Peak growth rate at 1 inch per week.

I say they have a bright future ahead of them.
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Regards,
Wayne A. Harvey
Thamnophis US
Savannah Monitors
Snakes and Lizards, It don't get any better....