also I find going over kill on filtration has worked well for me in FW, as you dont have live rock to handle Biofiltration. I was origninall running 2 AC110s the that along side a Marineland C-360 canister, now I just run 2 of the canisters, a total of 160(rated) gallons of filtration, In one I have all my biomedia, and chemical media, and the other is strictly mechanical filtration. For chem. filtration I am using, Chemi pure, carbon(lots
) phosban, which is a phosphate remover, and I cant remember the name of the other stuff, but its an ammonia absorber. my water is clear as crystal (now that I got an actual Light you can see it too
) Also depending on species, you may consider frozen/home made foods, my cichlids are of the herbivore species, so I feed them a frozen mush of spinach, peas, zuchini, broccoli, loads of garlic, and a bit of shrimp mixed in for protein, this diet has been used along side new life spectrum for 6 years, and the love it, never lost a fish in my tank I am happy to report!