I have been keeping monitors some lizards for years, and I am thinking of getting an Argentine black and white tegu. I have had good luck with a dirt/sand mixture for substrate for the monitors. It holds moisture well and my monitors are able to burrow into it.
I have a couple of questions for you experienced tegu keepers:
1.) Would this dirt/sand mixture be ok for the tegu?
2.) How deep is the substrate in your (knowledgeable keepers) enclosures?
For example:
Almost 3 foot Argus monitor in a burrow he dug. The dirt was 2 feet deep.

and
2 1/2 foot Frilly on top of substrate. Dirt was 6 inches deep.
and
Young Ornate monitor on dirt and leaf litter.
-----
Greetings,
Ed

