Even if you have them trained most rats don't exclusively use the litter box (some do I'm sure, mine never got completely on board). But it does help as they do seem to use it more often than not, so it just kind of gets the poop all in one location for easier cleaning. And yes, training is as simple as putting their poop or other soiled bedding in the litter box. Rats like being clean so they don't want to live in a dirty cage either.
My boys did pee everywhere though, usually from the highest ledge in the cage. Since having the litter box under there caused splatter sometimes (if they aimed just right), I just relied on the fleece to absorb it instead.
My boys did pee everywhere though, usually from the highest ledge in the cage. Since having the litter box under there caused splatter sometimes (if they aimed just right), I just relied on the fleece to absorb it instead.
