So I am gonna mix up my own soil. I have been gathering supply's . I am looking for input from people with exsperience . So far I have. Bone meal Blood meal Rock dust Worm castings Organic fertilizer Epsom salt Was gonna add the two types of guano high in N and the high in P one. For my base I was gonna use the plan pro mix stuff with a brick of co co mixed into it. Do you see any other things I should add to my soil?