Originally Posted by Sugoi808
i already got the powerhead in at the bottom of the tank circulating water.
what was the other part of your reply? what will the sponge do?
If its just debree not algae the powerhead, in theory, help kick it up off the substrate and a sponge on the intake would help mechanically filter it out. Sorta what i do on my 5 gal hex, except I don't have anything other than the stock top filter for flow. As jacksonpt said try adjusting your feedings first though (if you have not already)