Athena Cal-Mag Classic TM Water-Holding Capacity: 50 - 70

Water-Holding Capacity: 50 - 70 % by volume

Designed for every kind of plant your heart desires

Here are some key aspects of the final growth phase:

plant-based oils that are organic and healthy to use

Easily Removable EZ-Twist Cartridges

Athena Cal-Mag Classic TM Water-Holding Capacity: 50 - 70Cal 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