i dont know what a drop is considered lol. but as even kyle states above. organa-add is a micronutrient, with a top application rate of 8ml per gallon. he suggest using it at 4ml per gallon at 4weeks of vegative growth and upping to 8ml(possibly) (6ml more likely) when you hit the max growth in flowering. also the go line cal mag is pretty weak i know some guys using it at 15ml per gallon lol. i keep it at around 7.5-12.5 at tops. i would suggest doing the same type of application with your mineral matrix half of its top, then raising to just under to all the way to its highest application (if needed)
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