Hey there I have a 150 gallon tank that I set up a few months ago it's 4 foot by 2 foot deep and 31 in tall. I recently put a sun sun hw-304b canister filter on the tank love the filter but I have dead zones in my tank all over I have quite a bit of driftwood in the tank and dead zones are around the drift wood. So my question is do I need a power head or 2 of so what kind. This is freshwater tank. Any advice is welcome too
Tank stock-
1 red spot severum
2 gold severum
2 red shoulder severum
4 angels
2 red head geophagus
1 rope fish
1 royal pleco
1 flyer pleco


Tank stock-
1 red spot severum
2 gold severum
2 red shoulder severum
4 angels
2 red head geophagus
1 rope fish
1 royal pleco
1 flyer pleco

