When I built my pond, I set up a temporary filter from items at Lowes while I attempted to do a DIY Nexus based off a Koiphen post. It failed and I upgraded and put the DIY on hold. I have continued to use the SmartPond items just as a secondary pump filter as it gained another 1300gph in pond cycling and had two 10w uv filters built in. Well SmartPond is not a SmartBuilder and the propellor shaft broke today when i shut it off to clean it. a new part will be here in two days, but anything that breaks that fast and easy is crap. I would not recommend this thing even on a water garden or QT.