I ran my mixed tank, 65g(36"L) with 2 k evo 1400, mounted one kinda high and after tweaking there positions the flow was perfect. it not a 1400gph in one tight stream it's spread out. I just upgraded a few months ago to a vortech mp40 es, and it's gotta be one of my best investments in this tank, I talked a couple other people into one and they agree also