Ok iv had my tank up for some time now and have noticed allot of stuff collecting in the back middle i have 2 HOB
filters one on each side of the tank
hanging on the back one is an aqua clear 110 and the other is a penguin biowheel 350.
my question is can i stick a power head in at the bottom left of the tank blowing to the right to kinda keep the top of the sand clear i also might use this power head with Co2
if i can what do i stick on it so it dosent suck up my shrimp