Give your plant more than just Iron. 6% Fe, 2% Mn, 0.25% Mg. Rapid color response from urea nitrogen and organic acid complexed micronutrients. Because of the scientifically formulated ratio of iron, manganese, and magnesium, Hydra- Fe enhances photosynthesis through nutrition, specifically creating a dramatically enhanced green-up, far more noticeable than the many iron products on the market. Hydra-Fe is amine compatible with reduced risk of staining.