Ok, I'm looking to improve my yields in soil growing, I am going to train my plants more and vegg a little longer. But nute wise and water wise is where I think I can make improvements. I currently use BMO Nutes which are organic, and water twice a week. I'm harvesting in 5 gallon pots in about a month, yield looks really week. What nutes and what are some experienced growers pulling in a 4x4x7 space under a 600 watt hps?