Cal-Mag Plus Size:1 L which plants use as building

which plants use as building blocks and large populations of beneficial micro-organisms used as a food source

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stainless steel vacuum/vent valve

food safety

Cal-Mag Plus Size:1 L which plants use as buildingCal Mag Plus is a specialized calcium, magnesium & iron, plant supplement designed to compensate for deficiencies in some commercial and hydroponic nutrient programs. Cal Mag Plus also compensates for the natural calcium draw of coco coir fiber. Cal Mag Plus provides a precise balance and optimal ratios of the calcium, magnesium, and iron that are critical throughout all stages of growth, especially in heavily fruiting plants and fast blooming