Im using filtered tap water, botanicare nutes pro grow at 1/2 strength from 1/3rd, adds liquid karma, and cal-mag subs, i have another plant right beside it its actually 2 days younger and about an inch taller but it looks healthier, both are auto strains, a lowrider #1, and a smurfberry, they have been transplanted in my aerochamber for about 9 days, both half doubled in hight, one is just sickly looking, my ppm of the filtered tap water usually starts of at 68