Im in dirt now but thinking of trying coco. I have a friend doing coco and it seems he uses a hell of a lot of nutes and expensive ones, and he doesnt do much better than I do. What nutes are needed for best results? I use ocean farm soil and the three main nutes. I get two plus oz a plant. I hear stories of folks who say they can get a lb on one plant. I have yet to see one of these. If I try coco what should I feed them? my air water and lights are good.Thanks for any help