Hi fish people I have been suffering with high nitrates for some time now my tap water reads 40ppm plus so that's one problem the next problem is I can't get my nitrates below 80ppm I have plants I do water changes every week the tank is 9months old now the water looks great but i do lose the odd fish but I am worried I mite lose some of my big fish in the future. Anyone else here experienced the same problem and sorted it ??