The Green Planet Pro Cal is a premium calcium and magnesium supplement that supports healthy plant development, strong cell structure, and improved nutrient uptake. It prevents common deficiencies in calcium and magnesium that often appear in coco, hydroponics, and high-performance growing systems.

• Prevents Deficiencies: Corrects and protects against calcium and magnesium deficiencies.

• Stronger Plants: Improves cell wall strength for sturdier stems and leaves.

• Enhanced Nutrient Uptake: Balances the nutrient profile for more efficient absorption.

• Universal Application: Works in hydroponics, coco, and soil systems.

• Clean Formula: Highly soluble, dye-free, and safe for all crops.

Pro Cal ensures your plants receive the support they need for vigorous growth and maximum yields.

👉 For best results, use Pro Cal with the complete GP3 nutrient system and follow the official GP3 Professional Feeding Program.