Sunshine mix #4 General Organics nutrients (I water every other day, 3.5x weekly) 1000 W HPS & 600 W Metal Hallide 300 W fluorescent lights fans hard well water (for minerals) for flower room, humidity is around 40%, temperature 78 F (a little hot and wet) This is my fourth grow. If I didn't know better, I'd blame nutrient lock out. As you can see, my leaves are yellowing, my potency is barely 5%, and some plants barely yield 2 oz. It's frustrating. I want to make my own soil for next grow, see how much that helps. I need to get the light higher up off the plants, cuz the fluorescent one is burning them. Any other points? More fans? More light? Less nutrients? Is my cheap soil causing lock out? Is my well water too hard? pH is around 6.3...too low? TDS in runoff is like 3000-5000...too high? Did I just buy bad seeds? Thanks in advance for the help.