Hi all. Quick question, what can I do to reduce the nitrate levels in my tank? I mean obviously besides the water changes. I change my water - between 30-50% and my nitrates are back in the red (40-80ppm) within a couple of days. I suspect I'm probably guilty of over feeding so I'm trying to cut down on that a bit, but since I have fry and plecos as well as my community fish, I find myself trying to cater to each. Finely ground flakes which I soak for the fry, a sprinkle on the surface for the rest, some pellets or wafers for the plecs, it all adds up. I have loads of snails. It's a 66g tank, trickle filter with carbon, bio balls, ceramic rings, and purigen. I do water changes weekly and really give the gravel a good vacuum. What else can I do to reduce the nitrates? How much *should* I be feeding? Any help would be gratefully received!