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2% magnesium, 3. 2% calcium, and 01% chelated Iron EDTA. Contains no harmful substance - our fertilizer powder is great for hydroponic crops because it is free of heavy metals or harmful materials.
Proprietary formula for superior results - we choose only the highest quality raw materials used to make this hydroponic cal mag are from the purest ingredients sourced from Israel and the Netherlands. Better for plants, better for you, and better for the planet. Our cal mag plus comes in a dry concentrated form. Cal mag for all plants - our cal-mag plus is specifically formulated with the precise balance and optimum ratio of Calcium, Magnesium, Nitrogen, and Iron.


Simply dissolve it in water to make 2 gallons of Cal Mag Plus solution. It contains a 2-0-0 npk and can be mixed in with regular waterings to achieve the highest yield both in hydroponics and soil growing. Our cal mag plus comes in a dry concentrated form.
Better for plants, better for you, and better for the planet. Prevents common growth deficiencies - our specialty fertilizers contain chelated micronutrients to ensure adequate nourishment for your crops. Contains no harmful substance - our fertilizer powder is great for hydroponic crops because it is free of heavy metals or harmful materials. Additive boost for cal mag nutrients deficiency to improve blossom end rot, plant growth, strong stalk and leaf health.

Pure & natural: naturally derived nutrients composed of raw ingredients containing essential micro and macro elements for your indoor plants or farm - we do not source from industrial byproduct! Biggest yields: easily grow bigger healthier plants from seed to harvest with large buds and flowers, hydroponic, and deep robust roots in soil, thick stalks, or coco coir mediums.

1. General Hydroponics
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Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart, General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium
#adGeneral Hydroponics #ad - Contains an npK of 1-0-0 . Prevents secondary nutrient deficiencies in fast growing plants. Will not clog spray lines or drip emitters and can be used in reservoirs combined with many other fertilizers.More information #ad
Helps prevent blossom end rot and tip burn in tomatoes, lettuce, and other calcium intensive plants. Calimagic 1-0-0 is a concentrated blend of readily available calcium and magnesium.Brand | General Hydroponics #ad |
Manufacturer | Hawthorne Hydroponics, LLC #ad |
Height | 3.2 Inches |
Length | 3.3 Inches |
Weight | 2.9 Pounds |
Width | 8.6 Inches |
Part Number | HGC733525 |
Model | HGC733525 |
More information #ad
2. Grow More
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Mendocino Flowering Cal Mag, 1 qt.
#adGrow More #ad - Flowering cal mag helps plants enhance water and nutrient uptake, while establishing a larger crop yield and healthier plants. Can be used growing with coco, soil, or hydroponically.More information #ad
Created to boost fruit and flower yield as well as prevent blossom end rot. A hydroponic plant nutrient solution that is a proprietary blend of calcium and magnesium that contains NO NITROGEN.Brand | Grow More #ad |
Manufacturer | Grow More #ad |
Height | 9.5 Inches |
Length | 3.2 Inches |
Width | 3.2 Inches |
Part Number | GR5351 |
Model | GR5351 |
More information #ad
3. Love Trees Plant Nutrients
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Liquid Plant Nutrient Fertilizer Coco Coir, Rockwool Cubes, Foliar, Soil, Indoor Hydroponic, Cal Mag Plant Supplement, Cal Mag Zinc Supplement Love Trees Cal-SI-MAG Calcium Magnesium Iron Silicate
#adLove Trees Plant Nutrients #ad - Contains formulation of 3-0-0 NPK. 100% money back guarantee: at performance hydroponics We Value our Customers and stand behind our products 100%, which is why we offer a 100% money back guarantee if you're unsatisfied for any reason.More information #ad
Increase - chlorophyll Levels For Maximized Plant Production. Enhanced - root mass for larger yields. Cal-si-mag - resolves common Calcium Or Magnesium Deficiencies in Your Garden. Silica aids in environmental stress factors. Thicker cell walls - for stronger plants.Brand | Love Trees Plant Nutrients #ad |
Manufacturer | Love Trees Plant Nutrients #ad |
Height | 7.5 Inches |
Length | 5.29 Inches |
Weight | 10.39 Pounds |
Width | 2.3 Inches |
More information #ad
4. Greenway Biotech, Inc.
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& Magnesium for Blooming Plants and Annuals- 2.5 Pounds = 1 Gallon, Greenway Biotech Cal-Mag Plus Hydroponic 2-0-0 Concentrate for Hydroponics and Soil Growing- Contains Iron EDTA, Calcium, Nitrogen
#adGreenway Biotech, Inc. #ad - Additive boost for cal mag nutrients deficiency to improve blossom end rot, plant growth, strong stalk and leaf health. It contains a 2-0-0 npk and can be mixed in with regular waterings to achieve the highest yield both in hydroponics and soil growing. Premium quality ingredients - greenway biotech cal mag fertilizer contains total 2% nitrogen, 1.2% magnesium, 3. 2% calcium, and 01% chelated Iron EDTA. Contains no harmful substance - our fertilizer powder is great for hydroponic crops because it is free of heavy metals or harmful materials.
More information #ad
Simply dissolve it in water to make 1 gallon of Cal Mag Plus solution. When used in combination with other nutrients Cal Mag Plus functions as a catalyst to increase the uptake of essential minerals. Prevents common growth deficiencies - our specialty fertilizers contain chelated micronutrients to ensure adequate nourishment for your crops. Proprietary formula for superior results - we choose only the highest quality raw materials used to make this hydroponic cal mag are from the purest ingredients sourced from Israel and the Netherlands. Better for plants, better for you, and better for the planet. Our cal mag plus comes in a dry concentrated form. Cal mag for all plants - our cal-mag plus is specifically formulated with the precise balance and optimum ratio of Calcium, Magnesium, Nitrogen, and Iron.
Brand | Greenway Biotech, Inc. #ad |
Manufacturer | Greenway Biotech, Inc. #ad |
Height | 2.5 Inches |
Length | 7 Inches |
Weight | 2.5 Pounds |
Width | 5.5 Inches |
Part Number | TRTAZI11A |
Model | TRTAZ11A |
More information #ad
5. Botanicare
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Botanicare Cal-Mag Plus Quart Plant Supplement 1
#adBotanicare #ad - Great for Soil. Helps stop blossom end rot. Prevents magnesium deficiency. Prevents calcium deficiency. Great for Hydroponics.More information #ad
Brand | Botanicare #ad |
Manufacturer | American Agritech #ad |
Height | 10.5 Inches |
Length | 5.1 Inches |
Weight | 2.2 Pounds |
Width | 6.3 Inches |
Part Number | BCCMGAL |
Model | BCCMGAL |
More information #ad
6. Greenway Biotech, Inc.
#ad
Greenway Biotech Cal-Mag Plus Hydroponic 2-0-0 Concentrate for Hydroponics and Soil Growing- Contains Iron EDTA, & Magnesium for Blooming Plants and Annuals- 5 Pounds = 2 Gallons, Nitrogen, Calcium
#adGreenway Biotech, Inc. #ad - Cal mag for all plants - our cal-mag plus is specifically formulated with the precise balance and optimum ratio of Calcium, Nitrogen, Magnesium, and Iron. Premium quality ingredients - greenway biotech cal mag fertilizer contains total 2% nitrogen, 1. 2% magnesium, 3. 2% calcium, and 01% chelated Iron EDTA.Simply dissolve it in water to make 2 gallons of Cal Mag Plus solution. It contains a 2-0-0 npk and can be mixed in with regular waterings to achieve the highest yield both in hydroponics and soil growing. Our cal mag plus comes in a dry concentrated form.
More information #ad
When used in combination with other nutrients Cal Mag Plus functions as a catalyst to increase the uptake of essential minerals. Proprietary formula for superior results - we choose only the highest quality raw materials used to make this hydroponic cal mag are from the purest ingredients sourced from Israel and the Netherlands. Better for plants, better for you, and better for the planet. Prevents common growth deficiencies - our specialty fertilizers contain chelated micronutrients to ensure adequate nourishment for your crops. Contains no harmful substance - our fertilizer powder is great for hydroponic crops because it is free of heavy metals or harmful materials. Additive boost for cal mag nutrients deficiency to improve blossom end rot, plant growth, strong stalk and leaf health.
Brand | Greenway Biotech, Inc. #ad |
Manufacturer | Greenway Biotech, Inc. #ad |
Weight | 5 Pounds |
Part Number | TRTAZI11A |
Model | TRTAZ11A |
More information #ad
7. Lotus
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Water Soluble Powdered Nutrients w/ Nitrogen Calcium and Magnesium, and Cal/Mag, for Hydroponics Coco Coir and Soil, Vegetables Fruits and Herbs, Bloom, Lotus Nutrients Intro Pack w/ Grow, Boost
#adLotus #ad - Highest quality: increase smell, and potency in your flowering plants with the highest quality dry nutrients designed by growers for growers. A california company: design by growers in California and backed by industry-leading customer support.Pure & natural: naturally derived nutrients composed of raw ingredients containing essential micro and macro elements for your indoor plants or farm - we do not source from industrial byproduct! Biggest yields: easily grow bigger healthier plants from seed to harvest with large buds and flowers, hydroponic, and deep robust roots in soil, thick stalks, or coco coir mediums.
More information #ad
A part of the Grow Strong Industries family of brands. Lotus nutrients are natural plant fertilizers designed for growing in soil, indoor plants, coco coir, Boost, auto feeder, hydroponics, Cal/Mag, Bloom, or outdoor gardens with Grow, and Carboflush.Brand | Lotus #ad |
Manufacturer | SuperCloset #ad |
Part Number | L-PK-INTRO |
More information #ad
8. FoxFarm
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1 pt Cal-Mag, FoxFarm FX17010 Bush Doctor
#adFoxFarm #ad - Nobody likes blossom end rot or tip burn. Cal-mag supplement : 1 - 0 - 0, 3% Calcium 09% magnesium. Calcium and magnesium help strengthen cell walls and aid in fruit development, helping you avoid the costly and frustrating deficiencies that cause these problems.More information #ad
That’s why foxfarm brings you BUSH DOCTOR CAL-MAG. Omri listed and cdfa Registered for Organic Gardening.Brand | FoxFarm #ad |
Manufacturer | FoxFarm #ad |
Height | 8 Inches |
Length | 2.5 Inches |
Weight | 1.25 Pounds |
Width | 2.5 Inches |
Part Number | FX17010 |
Model | FX17010 |
More information #ad