I took a small maby 9 or 10 gallon acrylic aquarium and put it next to my wet dry filter. That is as far as I have gotten. I was just going to get maby 5 or 10 pounds of mud and put it in bags instead of putting it on the bottom of the tank so the clean up and mantnance is easer. Than just put a bunch of plants that belong in the sump. But than I hurd something about dividers and stuff. Am I missing something here.