NPK Raw Calcium | Magnesium
Raw calcium/mag is a soluble plant supplement that is used for horticultural purposes. Raw calcium/mag contains 15% calcium and 3% magnesium. Raw calcium/mag is an optimum ratio of fully water soluble calcium and magnesium. A 2 oz. package of raw calcium/mag makes up to 200 gallons, an 8 oz. package makes up to 800 gallons and a 2 lb. package makes up to 3200 gallons.