Hehehe. You know, when I started dosing ferts I didn't figure out EI, just followed a guideline someone on another board posted. Apparently it's top notch *thumbs up*.. but, I've been suffering with cloudy water since I started dosing, and high nitrates. Allegedly, my nitrate test kit is off too. So, I figured I'd scrap that idea and figure out EI and do it properly. Point is, I looked into PPS and now EI seems like a breeze lol