I maintain a group of 1.2 Ridge Tail Monitors in a Custom Built Enclosure measuring 4'L, 3'W, 5'H.

This Enclosure consists of a high basking shelf & multiple cork hollows. 
A few Branches and Artificial Foliage complete the setup.

I maintain Ambient Temperatures of 80°F to 95°F, with Basking areas in excess of 130°F!

Day/Night Light Cycle is 12 on, 12 off.

The Entire Bottom of this Enclosure is 24" of dirt. 
A Kane Heat Mat Mounted on one side of the tub provides Temperatures of 80°F to 90°F which offers a Good Thermogradient for Nesting Females.

I Offer a Varied Diet Consisting of Roaches, Crickets, Chopped Pinkies, Fish, Quail and Quail eggs!

Ridge Tail Monitors are indigenous to Australia!