Yah I definitely don't include powerheads as turn over as that only adds more flow. I've always been a big believer it's important to invest more money into your filtration than fishes as they are the reason your fish is alive. I do around a 75% w/c on all my tank 3 times a week change socks every other day. I would love to see a picture of your set up im curious to see how to set up a k1 sump. I'm considering buying a 75g tank and using Japanese matts as baffles for k1 compartment anyone think this will work? Pretty much [_|___|_]. Super simple.
I created a reactor for the K1. I found it easier to manage this way. I'm not sure how to upload videos on here without having to load them onto YouTube. This is what the reactors chamber looks like. A jaboa pump pushes the K1 by supplying water from the sump.The water flows through pvc and then circulates the media in the reactor. The filtered water flows back into the sump. It's a prett simple, straight forward setup. I'll have to snap some photos of the entire reactor when I get a chance.

