I prefer pelleted litters in litter pans. They are heavier, and I find that rats prefer them to other litters.This cage ... I won't be able to remove shelves or anything and no I will remove the poop and just scrub off urine and grease.
Off topic can I just use aspen in his litter box? Is there a material that is easiest to train them with? He poops everywhere right now and its a lot