Though Jack's 321 is way better than Megacrop, it is still far from ideal. If one is interested in perfect nutrients for their girls, your best bet to to toss out the Jacks, keep the CalNit and Epsom, also get MKP, MagNit, Potassium Sulfate, Potassium Silicate and make your own micro blend using Iron DTPA, Manganese EDTA, Zinc EDTA, Copper EDTA, Boric Acid and Sodium Molybdate. Once you have your own custom Micro blend, you can target all of your macros very easily.
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