so what nutrients do you have??.........cuz you should have a base nutrient and others to stack on that..........see i use Fox Farm Big Grow as my base nutrient....and i have b'cuzz growth,b'cuzz root, superthrive, Pot 'O' Gold, Oxygenator as add ons........plus some others due to being in flowering.......but you stack them upon each other .........hope i helped