ok so ive grown in dirt 6cfl diy light ficture well ive decided i want start a hydro grow. i want to go with a 600w hps hung verticle cool tube ect. and gonna be getting World of Seeds Afghan Kush Ryder autoflower for first grow then get some different strains later on. now i know it depends on grower and all that fun stuff but im unsure on what to do for nutes water(really hard water where im at) ?rockwool medium? and the easiest system to do so please i know im leaving ALOT open here and feel almost clueless on all of it ive done research and looked into some of the hydro methods please just some input on what a beginner at hydro should do.