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Cal-Mag – Core Mineral Support Calcium, Magnesium, and Iron Support for Stronger, More Balanced Plant Growth Cal-Mag is a supplemental nutrient designed to provide readily available calcium, magnesium, and iron to support healthy growth, strong plant structure, and consistent performance across all stages of cultivation. It is especially useful in systems where calcium and magnesium availability may be limited, including RO water, coco coir, and high-demand production environments. Cal-Mag is intended to be used alongside a complete base nutrient program, not as a replacement for one.
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🇺🇸 Ship from USA · On Agora since 2025
$80.00