I had a male and he died 2 years ago...after 17 years! Ron Tremper has been in this stuff forever! I was big into herpetology back in the late 80's early 90's and he was writing stuff back then. I did use sand as a substraight, a heat rock, and dusted the crickets and mealies with calcium, vitamin C (with rose hips), and multi-vitamin. Great pet to have and beautiful!