My mom's 20 gallon has a few mollies and platties and is quick on its way to being slightly overstocked. What filter would you reccomend ? It has two aquatech 5-15 right now but they dont have enough bio ability to keep up. Maybe the smallest fluval canister ? Or is there an Eheim canister that size? Or an aquaclear ?
Suggestions appreciated. Also would an UGF help ?