I admit it, I'm guilty of over stocking my planted tank. I clean the tank by vacuuming the sand, scrubing the glass, and changing 50% water weekly. I try to clean the filter every other month. Got to wondering if I should clean the filter either weekly or every other week. I missed last week's cleaning and today, 12 days later, I have .25 ammonia and 5 nitrate. What's your routine if overstocked?