bigbro
Hi, I have a 180 gallon (72 x 17-24(bowfront) x 28) tank with dual overflows and I feel like my setup does not have enough water circulation. There is a lot of surface agitation at the surface but there doesn't seem to be a lot of water movement at the substrate level since water enters the overflow at the top. Is it better to add a powerhead to direct the oxygen-rich water near the surface towards the bottom so that there is enough oxygenated water at all levels of the tank or is it unnecessary?