get earth worm castings, perlite, cocoir, and dirt... use that for the early stages. while your vegging you are going to want to cook some dirt yourself. get N and P guanos, alfalfa, kelp, oystershells, bone meal, blood meal, feather meal, and cook all that with your left over castings , perlite cocoir and dirt for your flowering stage dirt. obviously if u go this way check out measurements before u actually do. then you just need water basicly ... some teas twice amonth and add CaMg. try using rain water or RO water.... super simple once dirt is ready. theres a lot other indgredients you will need. check out sub superl dirt or something. I use TLO true living organics method and tweak off their. both are super organic