If you have a properly set up filtration system is it possible to reduce nitrates without a water change?
For example if your system has a working skimmer,fuge,dsb correct flow is it possible to reduce nitrates from 20ppm to 10ppm without a water change?
For example if your system has a working skimmer,fuge,dsb correct flow is it possible to reduce nitrates from 20ppm to 10ppm without a water change?