I used to use sand with the beardies but I noticed the smell was bad (even a couple of days after it had been changed). Sand is also bad for impaction and clogging up their digestive tracts!!! I changed them onto the paper pellets at about 6 months of age. If they crap on it, I just take out the pellets, same deal if they spill water on them. There is no smell compared to the sand (even after a month or so). To clean it, I just use the vacuum cleaner and suck it out!! One of them swallowed a pellet or 2 and it came out the other end, partly digested. With the crickets and woodies which hide in the pellets, I just stir it up with my fingers every coupla days and they eat them then... 2 big thumbs up from me!!!