You're welcome! I don't know if they're not smart enough to get in the dish, don't like it, or if their instincts tell them they could drown. They always seem to get more than enough water to pee all over the floor when I get them out to change their substrate. Oh yeah, you will need to remove any droppings that are left. It will cause a bad Oder followed by mold. I also usually have one or two rather small fake plants placed in the center of the tank. This is definitely not required, but they see to like them. Something tall that doesn't bush out at the bottom so they can sit under it instead of on it.