You want the two part formula Jack's A and B. Lots of people also use epsom salts with these nutrients-search for Jack's 321 for information on how to mix these and what EC you should run them at. You can see videos on how to mix them at the Jack's website too. Another good/easy option is Maxibloom, here is a good long thread on how to use it: https://www.icmag.com/forum/marijua...ertilizers/189616-the-k-i-s-s-method?t=191645.