Whats the best way to keep the enclosure clean?
You should spot clean your monitors enclosure every time you see feces. This only takes a few seconds a day and is not difficult. Every so often I use a shop-vac and suck up the top layer of dirt in my monitor’s enclosures. If you do not use dirt or do not have a very deep substrate then you may have to change out the entire substrate as it becomes soiled. You should always have fresh clean water available to your monitors and this usually means changing the water very often. Monitors seem to get incredible joy of washing themselves off in their water bowl, especially after you have recently changed it.