[bbehring]

hum, I'll have to give that some thought. My sump has the 3 sections, supply side, fuge in the middle with DSB and cheato, with return section. The return section is where the powerhead for the reactor is placed. I don't quite have enough room to run and maintain a filter sock for the overflow incoming water so I do get a build up of detrius that I have to siphon out every few months. Not sure how I would employ a ploy filter before the reactor pump?