Marlo95
Active Member
Hello everyone, I'm on my first ever DWC grow and I absolutely love it! I use general hydroponics nutrients and it works pretty well. My main question is basically. How do I know where my ppm should be? I recently have an incident with one of my plants that made the lower leaves turn yellow and a couple died because I wasn't feeding them enough. Since I use general hydroponics I use a chart that tells me when and how much to feed but the chart tells me to use more than I should because they want buyers to use more product even if the plant doesn't need it. I know all about ppm and ph but I don't know about EC. what is EC? What's the purpose? And how do I know how many ppm to add?