what kind of substrate do you use?

I use Scott Shop Towels, 100% natural, non-toxic, and its blue!

Paper towels:gj:
I used aspen for a long while, but it started to get really old. I always changed it out everytime they pooped or pee'd because of how much it would soak up( not wanting belly rot here) and it would always get stuck to his food, and id have to pull it all off. Now if i see poop or pee it only takes a few seconds to change it:)

;) newspaper here