I tried using carefresh for my BPs for a while and I hated it. It would get pressed into a big clump around the sides of the tub and become useless. I spot clean religiously and it would still mold. Even a little spilled water and you have to clean the whole tub and use new carefresh. I was cleaning all the tubs and using fresh carefree every week almost, so I threw away the bag I had and went back to aspen and I couldn't be happier. I can't even imagine using it for something like a blood that requires more humidity than balls.