I have purchased a 60cmx60cm×140cm grow tent and a Mars hydro 300 (150w) led light. I am going to get a carbon filter with fan and the rest of the equipment I need help with. I want to use kind soil which you don't have to ever use nutrients on your grow. The problem is its very expensive to buy even the 5lb bag. I don't know what nutrients I need or how often to use them when I set up my auto strains grow. I smoke weed a lot but have no clue on how to get up and running for myself..I would like people to help me out with what I need and how often I should do things