Fyi, becareful with using Care Fresh for reptiles. I use them for my bunny's litterbox and hamster (when he was around). While it does a good job keeping things dry and soaks up the urine well, it can dry up the enclosure more than you want to, especially when it needs some humidity for shedding (That can be remedied with a humid hide but that is another thing that takes up space). Most importantly, if it accidentally swallows a little bit of it during feeding, this stuff swells up 2-3 times its size and that can be troublesome if it gets stuck in its guts. You can also remedy that by feeding it in a tub or on a plate. It is a little more work and troublesome than aspen.