Emerald Harvest Cal-Mag - 3.79L Set of 2 This will give you a

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

so crop flavor and aroma are unaffected

up to and including the flush

When the room temperature is up to or above 20°C

Emerald Harvest Cal-Mag - 3.79L Set of 2 This will give you aKeep 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.