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cultivation nation cal-mag is a supplement for use during fruiting and flowering to address nutrient deficiency problems that can occur in hydroponic, soil and both small and large-scale growing environments.
mix 1 tbsp (15 ml) per gallon (4 l) of water. begin use just before bud development. continue use as needed, not more than once per week.
maintain a ph range of 5.6 – 6.8. a ph outside this range can affect the availability of calcium and magnesium.
