excellent info, dan! ill be honest, right now, i only read part 1 fully, and skimmed through the rest cause ive already read up on most of this info, but im gonna fully read it later on. im not sure about the powdered black strap cause i never used it before, but i use the liquid black strap @ 1 tbl a gallon of water, usually in conjunction with ewc tea. works freakin wonders, and the plants love it, every watering. also, i found this little image of black strap nutrient info which goes with your description. cool beans.