I'm setting up a new FOWLR system for a 47g tall (20x18x30h) and have a ViaAqua Multi-Skimmer @ 200gph coming, but assume I'll need additional circulation and am looking at a maxijet. A Model 600 @160gph would get me about 7.5x turnover total, and I've read it should be 6-10x... Should 1 jet be...