Don't use schultz or miracle grow if you can avoid it. I you have to buy your nutrients at walmart or a lowes or something, but organic that is the best that they sell. Use something like 4-1-4 in early veg, then maybe a 8-4-6, then in flowering, cut the nitrogen out after first week, N is the first number. Maybe a 0-8-8, you need more phosphorus in week 4-7 or so depending on your strain.