Greenway Biotech Cal-Mag Plus

Hydroponic systems often use purified or reverse osmosis water, which lacks the natural mineral content found in soil. This supplement restores essential calcium, magnesium, and iron levels to prevent deficiencies that can stunt growth or cause issues like blossom-end rot.

Yes, it is highly recommended for coco coir. Coco coir naturally binds to calcium, which can lead to nutrient lockout; using this supplement helps ensure your plants receive the calcium they need despite the medium's properties.

Always dissolve the Cal-Mag Plus into your water first before adding any other fertilizers or supplements. This prevents potential nutrient precipitation or chemical reactions that can occur when mixing concentrated minerals with other components.

This formula is designed to be fully water-soluble and leaves no residue behind. It is safe to use in irrigation and hydroponic systems without the risk of clogging emitters or lines.

No, this is a synthetic fertilizer. It is formulated for precision and rapid uptake, making it a reliable choice for growers who prioritize controlled, consistent mineral delivery over organic certification.

To create your liquid concentrate, mix the 2.5 lbs of powder into one gallon of water. Once fully dissolved, you can use this stock solution to mix your final nutrient reservoir according to your specific plant's feeding schedule.