Grotek Cal-Max
Best nutrient supplement for gardeners managing high-stress or rapid growth phases.
This is the ultimate insurance policy for high-stress growth cycles. By delivering a concentrated hit of calcium, magnesium, and iron, it rescues plants from heat-induced deficiencies that standard fertilizers miss. It’s a bit of extra effort to manage, but it’s the most reliable way to prevent tip burn and stunted development.
$19.04
at
Amazon
Who it's for
- Coco coir growers needing robust plant structure and health
- Gardeners seeking vibrant foliage through enhanced micronutrient support
- Budget-conscious growers prioritizing long-term value and high concentration
Who should skip it
- Farmers using hard tap water with existing mineral levels
- Beginners struggling with complex reservoir mixing sequences
- Growers wanting a low-maintenance, stable pH nutrient solution
Performance breakdown
Deficiency Correction Speed
Rapidly addresses calcium and magnesium gaps during peak growth cycles.
Foliar Absorption Efficiency
Highly effective delivery method when root systems struggle with nutrient uptake.
Heat Stress Resilience
Provides critical structural support for plants enduring intense summer temperatures.
Application Versatility
Functions seamlessly as both a preventative measure and a targeted treatment.
Nutrient Concentration
Potent mineral-based formula delivers high-impact results with minimal product usage.
Ease of Integration
Simple to incorporate into existing feeding schedules for consistent plant health.
Key Specs
Form
Liquid
Volume
1 Liter
Active Ingredients
Calcium, Magnesium, Iron
Application Method
Foliar spray or root drench
Primary Benefit
Corrects nutrient deficiencies
Target Crops
Tomatoes, Lettuce
SKU
H-GTCLMXQT
UPC
670829815132
Know before you buy
Still have a question?
Ask Metto anything about the Grotek Cal-Max before you decide.
