Canna CalMag Agent (1L)
Best nutrient supplement for growers using soft or reverse osmosis water.
The Canna CalMag Agent is formulated to address nutrient deficiencies common in soft water or reverse osmosis filtered water systems. This agent effectively increases water hardness by supplying essential calcium and magnesium in the correct balance. It is specifically designed to protect and maintain the overall quality of your nutrient solution while stored in the reservoir. By improving water quality, the CalMag prevents common deficiencies, leading to stronger, healthier plants and promoting better quality flower development. It is perfected for use with CANNA COCO substrate systems.
$14.95
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-76%
Below average
Package Volume
1
/ L
Who it's for
- Hydroponic gardeners using reverse osmosis or soft water systems
- Indoor growers aiming for stronger stems and plant resilience
- Canna users seeking a perfectly compatible nutrient regimen
Who should skip it
- Gardeners with hard tap water who have sufficient mineral levels
- Novice growers preferring a simple, low-maintenance feeding schedule
- Precision-focused gardeners worried about nutrient lockout risks
Performance breakdown
RO Water Correction
Perfectly recalibrates soft or reverse osmosis water for optimal nutrient uptake.
Nutrient Compatibility
Seamlessly integrates with Canna Coco systems for consistent, reliable feeding.
pH Stability
Effectively buffers reservoir solutions to prevent erratic pH fluctuations.
Deficiency Prevention
Eliminates common calcium and magnesium gaps before they impact plant health.
Concentration Efficiency
Highly concentrated formula ensures a little goes a long way.
Flower Development
Provides the essential building blocks for denser, more robust floral structures.
Key Specs
Package Volume
1L
Primary Function
Calcium and Magnesium Supplementation
Compatibility
CANNA COCO substrate
Effect
Increases water hardness
Benefit
Stabilizes water pH over time
Features
- Optimizes water quality for nutrient uptake
- Maintains nutrient integrity within the reservoir
- Promotes robust plant health and stronger flowers
- Ideal solution for growers using soft or RO water
What customers say
Consumers consistently praise Canna CalMag Agent for its exceptional effectiveness and reliability in addressing common nutrient deficiencies. Users report rapid correction of calcium and magnesium issues, leading to visibly healthier, more vigorous plant growth across various cultivation setups. The product is highly valued for its concentrated formula, meaning a little goes a long way, enhancing its overall value proposition. Gardeners trust this agent as a dependable staple, noting its seamless integration into established feeding regimens without causing pH fluctuations or nutrient lockout. This product delivers predictable, high quality results every time.
Know before you buy
It depends on the hardness of your local tap water. This product is specifically designed for growers using soft water or reverse osmosis (RO) systems that lack sufficient calcium and magnesium levels. If your water is already hard, adding this may lead to nutrient lockout.
While it is specifically formulated to complement the Canna Coco line, it can be used as a calcium and magnesium supplement in other hydroponic or soil-based systems. However, always monitor your EC levels closely when introducing it to non-Canna nutrient programs.
Canna CalMag Agent helps stabilize the pH of your nutrient solution over time. By increasing water hardness, it provides a more stable environment for nutrient uptake, which prevents the rapid pH fluctuations often seen in soft or RO water.
Yes, you can add it to your reservoir, but it is best practice to add your CalMag Agent to the water first to establish the correct base hardness before mixing in your other fertilizers. This ensures the nutrients remain stable and fully available to your plants.
Yes. By preventing calcium and magnesium deficiencies, the plant can focus its energy on structural growth and flower development. This leads to stronger stems and more robust, high-quality blooms.
Still have a question?
Ask Hayley anything about this product before you decide.