If I submerged (at least the bowl part of) an Exo terra waterfall in a small homemade pond (in the enclosure) of water, would the waterfall be able to filter all the water in the sectioned off part. I got this idea from this video.
https://www.youtube.com/watch?v=S-BgdS6bC9g
You don't have to watch the video, its long and boring. Skip to 16:50 is part of the video.