GMSgrowsanswered grow question a year ago Once clones have enough roots to be transplanted, they can be fed at 600 ppm 1.2 ec right from the hop if your in coco or water, if their photo periods, and 400 ppm 0.8 ec for autos. Increase 100 ppm every week, 800 max for photos, 600 to 650 ppm max for autos, unless they ask for more.