Veruca's kittens are a little over 3 weeks old. I know they will be ready to litter box train soon. They are in a bedroom with Veruca. I bought Good Mews for the kittens' litten pans (I bought 4 small baking sheets for them.) My question is should I change Veruca's litter to Good Mews too? The kittens will have access to it so I'm assuming it has to be kitten safe too. But the sides of her box are normal height, so perhaps they will be past the "eating litter" stage by the time they can jump in it. What do you all think?