Thanks for the feedback everyone! I was using an Eheim return pump for the longest time and thought maybe it would be a good idea to start using powerhead to reduce my long term electricity consumption. After trying a few different powerheads, the most powerful one being 2500 GPH, I realized that the flow is not as strong as the return pump I was using (255 - 555 GPH) so I thought maybe I need to get another, much stronger, powerhead. I just wanted to see what others were doing. Thanks again!