so i have 3 guinea pigs and so they have like around a 8ft by 10ft cage and so they have two bowls but they keep pooping and peeing in them and so i'm not sure if its fine i replace their food every day when i wake up as there food turns into a dust so how can i prevent this or stop it were they will have full access to it/ this is just a second question so will it be alright if i were to use like a treat ball that is made out of rubber and has two holes on each side and if so would a normal rubber ball be ok