I just started using Cana Coco and nutes A and B. I have 24 plants consiting of G13-Haze, Twilight, OG Kush, Sour Cream, and Cloud 9. They are under 2 Dual Cool Tubes w/ 4 600w HPS bulbs in a 8x4x8 tent. I havent started flowering yet but will soon. Just having alittle bit of a heat problem...