When they live on cat food and table scraps its not green. It had a tray with cat litter for a toilet. You do have to let the possum pick the spot. This one went behind the tv cabinet . First one my wifehad justwent in the pet carrier it was put in at night.
PS. She is not getting another one. She has had two. Both stayed tame. Both hated her bathing them too. Like trying to wash a cat. They take a lot of care. I think they keep growing till they die. They are not long life creatures. 2-3 years.