Emerald Harvest Cal-Mag - 3.79L Set of 2 economical ocean derived nutrient source

economical ocean derived nutrient source available

This will give you a much larger pH "safety" margin than

magnesium and potassium

essential for healthy plant growth

Emerald Harvest Cal-Mag - 3.79L Set of 2 economical ocean derived nutrient sourceKeep your plants thriving with Cal Mag, a high quality calcium magnesium supplement from Emerald Harvest. Formulated with high quality ingredients, Cal Mag provides the extra calcium and magnesium needed to support vigorous flowering and heavy yields. It's particularly beneficial for media like coco coir, but any garden can reap its advantages. Cal Mag strengthens plants and helps correct nutrient deficiencies commonly found in various growing media.