FloraFlex Wet Solutions Wet CalMag, 5 GallonWet Solutions Wet CalMag 2 0 0 Essential Calcium, Magnesium, and Iron Supplement Wet Solutions Wet CalMag 2 0 0 is an essential nutrient supplement designed to provide your plants with critical Calcium, Magnesium, and Iron. Perfectly formulated to complement our 2 part base nutrient formulas, Wet CalMag addresses common deficiencies that may arise during rapid growth and developmental phases. This versatile supplement is particularly effective when