Our award-winning Cal Mag Maximizer (NPK 3.59-0-0) is a vegan, calcium and magnesium, supplement for your plants formulated for hydroponic and soil indoor and outdoor gardening systems. Formulated to help increase your plant’s vigor, builds strong cell walls for lush, green leaves and larger yields.
Active ingredients: 3% Calcium, 1% Magnesium (Calcium nitrite, magnesium nitrate)