I thought I would put in a post about Chinchilla Sand. I use it in the litter tray below the wheel. It collects wee etc and cleans the feet. I put up a similar post on another forum and not one person said that Chinchilla Sand caused a problem. Who uses it on here? Any problems? I would like to study actual problems not oh it could cause this problem. I have been using it for months and my other forum recomeds it. anyone on here using Chinchilla Sand please also post on here