Just started growing, starting slow in a tent with 5 gallon buckets. my issue is that my well water is testing at high 400s. since I started into my 4th week and increasing my nutrients; my water is 1500 PPM and plants are not doing well. I have been reading about RO? is it possible to put a simple filter set up onto my well water tank? I know this is the issue, PH is good but PPM too high.