I have a two part question for you guys. I invested in a irrigation system for my vacation. I’m just running fox farm soil with veg bloom and Recharge and some times I apply great white should I apply cal-mag to mix would it be Beneficial?? But through the research I’ve see what real dwc can do and I will be converting over with an ebb and flow system or non recirculating witch ever is best! My question is what is the best way to raise and or lower my ppm and what’s the Best ppm number for my Reservoir?