I'm following subcools soil recipe. The only difference will be that I have to use pro mix bx soil with myco as a base. I have an enormous supply of chicken litter and cow manure, both composted and fresh. I would like to add some chicken litter and cow manure into the mix as well. However, I'm unsure of how much to use. I know sub suggests humic acid, what about some fulvic acid? I'll also be adding 15-30 gallons of bio-char into the mix. Any suggestions, advice, or help is appreciated.