Mills Calmag

Concentrated Calcium & Magnesium Supplement

Mills Nutrients CalMag is a high-purity calcium and magnesium supplement engineered to prevent and rapidly correct mineral deficiencies. Calcium and magnesium are vital secondary macronutrients required for strong structural integrity and rapid energy production. Mills CalMag ensures your crop maintains optimal health when growing in low-mineral water or under heavy feeding regimes.

This supplement is essential for several key growing scenarios:

• Soft Water & RO Supplies: Soft tap water (starting EC below 0.3) and Reverse Osmosis (RO) water lack natural background minerals. CalMag restores water to an ideal baseline EC before base nutrients are added.

• Coco Coir Cultivation: Unbuffered or high-performance coco substrates naturally bind to calcium ions, making additional calcium supplementation vital to prevent early leaf chlorosis and stunted growth.

• Peak Flowering & P-K Spikes: Heavy applications of phosphorus and potassium boosters during mid-to-late bloom can induce calcium and magnesium lockouts. CalMag restores mineral equilibrium in the root zone.

By reinforcing cell walls with available calcium and boosting chlorophyll production with magnesium, Mills CalMag builds sturdy stem architecture, increases photosynthetic efficiency, and protects crops against environmental stress.

Pro-Tip: Always add CalMag to your reservoir first when using RO or soft water, mixing thoroughly to bring your baseline EC up to roughly 0.4 before introducing your base nutrients. (Note: If using Mills Basis A&B Soft Water, additional CalMag is generally not required).

Key Benefits:

• Corrects & Prevents Deficiencies: Rapidly resolves leaf yellowing, brown spots, and weak stem structure caused by mineral shortages.

• Vital for Soft Water & RO Systems: Rebalances purified or soft tap water supplies to create an optimal nutrient foundation.

• Essential for Coco Coir: Supplies extra calcium to satisfy the natural cation exchange demand of coconut coir substrates.

• Strengthens Cell Wall Integrity: High calcium content reinforces plant tissue, increasing resilience against heat stress, pests, and pathogens.

• Supercharges Photosynthesis: Delivers essential magnesium to build chlorophyll, driving faster energy conversion and growth.

• Prevents Nutrient Lockout: Balances root zone mineral ratios during periods of heavy PK booster application.