General Hydroponics
General Hydroponics CALiMAGic Calcium-Magnesium Supplement
Best nutrient supplement for preventing deficiencies in fast-growing indoor crops.
General Hydroponics Calimagic is a concentrated liquid supplement providing essential calcium and magnesium for fast-growing plants. This formula effectively prevents and corrects secondary nutrient deficiencies, optimizing plant nutrition for enhanced growth and development. It is particularly beneficial for calcium-intensive crops like tomatoes and lettuce, helping to prevent issues such as blossom end rot and tip burn. Ideal for hydroponic systems, soil, and soilless applications, Calimagic ensures your plants receive the vital nutrients needed for robust health and superior yields, especially during critical flowering and fruiting stages.
$14.28
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4348
#50 in Fertilizers
Price vs Category Average
-77%
Below average
Manufacturer
General Hydroponics
/ General Hydroponics
Who it's for
- System operators needing reliable, clog-free nutrient delivery
- Gardeners struggling with visible plant nutrient deficiencies
- Hydroponic growers using reverse osmosis or inert coco coir
Who should skip it
- Growers with naturally mineral-rich hard water sources
- Beginners prone to over-fertilizing their sensitive crops
- Budget-conscious gardeners preferring simplified, all-in-one feeding programs
Performance breakdown
Nutrient Bioavailability
Mineral-based formula ensures rapid absorption for immediate plant uptake.
Deficiency Correction
Highly effective at reversing common calcium and magnesium stress symptoms.
System Versatility
Seamlessly integrates into hydroponic reservoirs, soil, and coco coir setups.
Concentration Efficiency
Potent liquid concentrate stretches your budget across many feeding cycles.
Ease of Dosing
Liquid form simplifies precise measurement for consistent nutrient mixing.
Crop Protection
Reliably prevents blossom end rot in calcium-hungry fruiting plants.
Key Specs
Manufacturer
General Hydroponics
General Hydroponics Part #
HGC733525
Country of Manufacture
United States
UPC
793094017725
Weight
3.00 lbs
Dimensions
3.25" W x 3.25" D x 8.75" H
Size
1 qt
NPK Ratio
1-0-0
Features
- Provides essential calcium and magnesium
- Prevents and corrects nutrient deficiencies
- Helps prevent blossom end rot
- Suitable for hydroponics, soil, and soilless media
- Supports optimal plant development
- Easy to use concentrated formula
- Assists fast-growing plants
- Optimizes plant nutrition
What customers say
Customers consistently praise CALiMAGic for its exceptional reliability and effectiveness in treating calcium and magnesium deficiencies. Users view this supplement as a necessary staple, noting how quickly it resolves common issues like yellowing leaves and stunted growth. The liquid formulation is also highlighted for its ease of use and simple integration into existing nutrient schedules, offering excellent value for serious growers who demand consistent results.
Know before you buy
Yes, this supplement is fully water-soluble and designed to work effectively in hydroponic systems, traditional soil, and soilless growing media like coco coir.
Absolutely. Blossom end rot is often caused by a calcium deficiency, and adding CALiMAGic provides the necessary calcium to help your plants develop healthy, rot-free fruit.
No, CALiMAGic has an NPK ratio of 1-0-0. It is specifically formulated to provide calcium and magnesium without adding extra phosphorus or potassium, allowing you to maintain precise control over your primary nutrient regimen.
While it can be used throughout the life of the plant to prevent deficiencies, it is especially beneficial during the rapid growth phase and the critical flowering and fruiting stages when calcium and magnesium demands are at their highest.
This is a concentrated supplement, not a complete fertilizer. It should be used alongside your primary nutrient program to address specific calcium and magnesium needs rather than as a standalone food source.
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