well i got this schultz all purpose 20-20-20 nutes, it says mix a tbsp to a gallon, but ive read its better to have higher nitrogen and lower ph. and potassium something like 20-5-5, and then in bloom use less nitrogen and more of the other two like 5-15-15, i suppose i could use this 20-20-20 all the way through, but i can go get whatever, but i never order online, so whatever i get is gonna come from the flower garden place name brands probably wont help but who knows, i havent gotten the chance to go check stuff out down there yet, but the girls are looking wonderful, so i guess its nothing i should worry about too much