I have had ferrets for 6 years and have almost exclusively used the clumping, less tracking, low dust clay litter. I found through the fml that this wasn't optimal, and tried several other litters. Unfortunately, the little buggers will not use anything except the clay. They don't snorkel in it anymore, I broke them of that right away. However, if I put Yesterday's News or anything other than what they recognize as litter, they do snorkel in it and refuse to use the litter box. So, I always go back to clay. I guess I intend to keep using clay (no flames, please, I tried to do the right thing, they just refuse). So my question is, if they don't snorkle in it, is it still bad for them? They only crawl in and poop. I should also mention that my 3 are free range ferrets. They don't have a cage (at least not for daily use, just a carrier with a hammock and 2 large bedrooms and a large bath to run around in. I'm hoping that since they aren't locked up with it, and they don't stuff it up their cute little noses, that it is basically not going to hurt them. I notice no dust when I have to pour more in, and usually do it when they are asleep and not nearby. Anyway, I am not really asking opinions on my litter choice, I just want to know how bad it really is. D Bailey-chief snuggler Eddie-chief speedbump Little Bit-Chief Troublemaker carrier with a [Posted in FML issue 2379]