[Glimmerman911]

Ok. I tried running my sequence barracuda through my 50g sump, and no matter what I did, microbubbles were a huge problem because there was just too much turnover through the sump, not enough time for the bubbles to dissipate.

To be honest, if I were to do it again, I would use tunze streams (1 large, or 2 small), and not a closed loop for my water flow, and just use a mag 7 pump for your sump return pump. I know it puts pumps into your tank, but it is just 2, and they do not rely on suction cups like regular powerheads.