The outer box should have a base of either newspaper or dry vermiculite, or orchid bark. There are several different sizes of vermiculite granules and any size can be used, but the larger size is better for egg laying and it doesn't break down as quickly. In egg laying boxes, and the ambient temp. During breeding season, it is best to keep both ambient and egg box temps. Feeding Fat-tailed geckos is the same as for leopard geckos.
Crickets are the best food source.
Mealworms fed once a month, after the geckos are six months old are all right. Placing them in a bowl of mineral supplement during feeding will ensure the animals ingest the needed minerals. Feeding baby mice to adult geckos is not necessary, but after egg laying they can quickly help rebuild the gecko's fat reserves. The breeding season of the Fat-tail is between Oct. and June, but different breeding colonies may have unique schedules. Mating normally occurs in Dec. and the first clutch of eggs can be expected from fifteen to forty-five days later.