There are many good reviews for the BH-2000 on a tank your size or even larger. The effectiveness of any skimmer does depend somewhat on bioload so just be sure you don't overdo it. If I were you, I would not get the BH-1000 on a 75G FOWLR, but that's just because I believe in getting a skimmer that is rated for something like 1.5x the tank volume. Because let's face it, most of us do not "under-populate" our tanks, right?