Its an additive IMO. Use your bloom micro and grow. Add an extra gallon of water mixed with kushiekush at 2ml a litre(10ml a gallon). shake it up and mix to the rest of your mix.
I would rather buy diamond nectar than kushie kush. Way better additive. Get karbo boost to. Get a bloom booster over kushie kush. Get monster bloom or big bud.
Mix it all really good before you add to the res.