My tap water straight out of the faucet gets around 10-20 ppm nitrates. I live in a farming area and I could only assume the high nitrates are from field run off but I don't use well water so I'm never sure. Either way I have what others have told me is quite high nitrates in my water and I wanted to know what others did to address this issue? Buying water or an R/O system is insane imo but stuff like plants for the tank have been of interest to me. When nitrates are high from the start and you have a large turtle producing even more waste that gets converted into nitrates, you can assume I do changes often due to high nitrates and would love to hear your suggestions on how to get lower nitrates from my tap.