Im not sure if hey make thier own burrows or not, but ive read plenty of stories of them dissapearing into burrows of abandoned by other animals.if youre keeping it this is the setup id go with : minimum 100 gallon tank just a few rocks in the center(it will try to topple so i would build it high) so it can use them if necessry, Id throw several feet of pvc pipe under about 6 inches of sand. And of course et it toys, if you need help on that let us know.