11 Best General Hydroponics Cal Mag for 2024

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With the growing popularity of hydroponics, the demand for high-quality nutrients and supplements has increased significantly. One essential product for hydroponic systems is Cal Mag, which provides plants with vital calcium and magnesium. To make your search easier, we have curated a list of the 11 best General Hydroponics Cal Mag for 2023. Whether you are a seasoned hydroponic gardener or just starting out, these top-rated products are sure to enhance the health and growth of your plants. From nutrient ratios to purity and effectiveness, we have considered various factors to ensure that only the finest Cal Mag options are included in our selection. Stay tuned to discover the best General Hydroponics Cal Mag products for an exceptional hydroponic gardening experience in 2023.

General Hydroponics CALiMAGic 1-0-0

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Overall Score: 9/10

The General Hydroponics CALiMAGic 1-0-0 is a concentrated blend of readily available calcium and magnesium that helps prevent secondary nutrient deficiencies in fast-growing plants. It specifically targets blossom end rot and tip burn in calcium-intensive plants like tomatoes and lettuce. This product is clean, soluble, and will not clog spray lines or drip emitters. It can be used in reservoirs combined with other fertilizers. The CALiMAGic 1-0-0 comes in a 1-Quart bottle and contains an NPK of 1-0-0. With a customer rating of 4.7/5 based on positive reviews, it is highly regarded by users.

The General Hydroponics CALiMAGic 1-0-0 is a highly recommended product for any gardener dealing with calcium and magnesium deficiencies in fast-growing plants. With its concentrated blend, it effectively prevents secondary nutrient deficiencies and addresses common issues like blossom end rot and tip burn. The CALiMAGic 1-0-0 is easy to use, does not clog spray lines, and can be combined with other fertilizers. Although the darker color may initially raise concerns, the product has shown great results and received positive feedback from users. Overall, this is a must-have for hydroponic gardeners who want their plants to thrive.

General Hydroponics CaMg+, Calcium Magnesium Supplement

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Overall Score: 8/10

The General Hydroponics CaMg+ is a calcium magnesium supplement designed to optimize plant nutrition and promote enhanced growth and healthier flowers and fruits. It is made from a blend of fermented calcium and magnesium complexed with organic acids and sugar chelates. The low molecular weight acids in the supplement may facilitate calcium and magnesium transport into the plants. The CaMg+ is biologically catalyzed from oyster shell, dolomite lime, and natural plant extracts. It comes in a 1 quart size and has a natural color. Customers have rated this product 4.7 out of 5.

The General Hydroponics CaMg+ is a great calcium magnesium supplement for optimizing plant nutrition and promoting healthy growth. With its unique blend of fermented calcium and magnesium complexed with organic acids and sugar chelates, this product offers a natural and biologically catalyzed solution. It has received high ratings from customers who have seen great results in their plants. While some customers may prefer a different form of magnesium, overall, the CaMg+ is highly recommended for anyone serious about their plants’ development and looking for an effective and organic nutrient supplement.

General Hydroponics Flora Series

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Overall Score: 9/10

The General Hydroponics Flora Series is a 3-part hydroponic nutrient system that fulfills your plants' nutrient needs at every stage of growth. The three nutrients included in the series are FloraMicro, FloraBloom, and FloraGro, each providing essential elements for comprehensive plant development. FloraMicro contains nitrogen, calcium, and trace minerals, while FloraBloom adds phosphorus, potassium, magnesium, and sulfur for flower and fruit development. FloraGro provides additional nitrogen and potassium for structural and foliar growth. This nutrient system is recommended for hydroponic growing, as it ensures plants receive the necessary nutrients in the absence of soil. It is also flexible and affordable, allowing for custom fertilizer blends and programs. With a customer rating of 4.7/5, this hydroponic nutrient system is highly regarded by experienced growers.

The General Hydroponics Flora Series is a highly recommended hydroponic nutrient system that caters to the specific nutrient needs of plants at every growth stage. With a customer rating of 4.7/5, it has received positive reviews for its effectiveness, ease of use, and affordability. The inclusion of FloraMicro, FloraBloom, and FloraGro ensures a comprehensive plant diet, promoting healthy growth, flowering, and fruit development. This nutrient system is particularly beneficial for hydroponic growing, providing essential nutrients in the absence of soil. It is also versatile, allowing users to create custom blends and programs to meet the unique requirements of different plant species. While there have been a few issues with packaging, overall, the General Hydroponics Flora Series proves to be a reliable choice for professional and amateur gardeners alike.

Cal Mag Plant Supplement with Micronutrients – Concentrated Calcium Fertilizer for Garden & Hydroponics – Calmag for Plants, Quart (32 oz)

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Overall Score: 8.5/10

The Cal Mag Plant Supplement with Micronutrients is a concentrated calcium fertilizer designed for gardens and hydroponics. It contains a bioactivated formula with micronutrients such as iron, zinc, boron, copper, manganese, molybdenum, and sulfur. This formula ensures optimal nutrient uptake for plants. The supplement prevents common growth deficiencies and can be applied in every stage of growth for strong stalk and leaf health. It is compatible with any nutrient system and helps make other minerals more bio-available. Unlike other brands, this product contains no harmful EDTA and uses organic chelates for a healthier garden. With positive reviews and a high customer rating of 4.6/5, this plant supplement is highly recommended for garden enthusiasts.

The Cal Mag Plant Supplement with Micronutrients is a highly effective calcium fertilizer for gardens and hydroponics. It contains a rich blend of micronutrients that promote optimal plant growth and prevent common deficiencies. The bioactivated formula ensures efficient nutrient uptake, providing strong stalks and healthy leaves. The supplement is compatible with any nutrient system and can enhance the bio-availability of other minerals. It is also manufactured with care for the environment, using organic chelates instead of harmful chemicals. With positive feedback from satisfied customers, this plant supplement is a reliable choice for gardeners who want to nurture vibrant and healthy plants.

GH CALiMAGicGallon Plant Nutrition

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Overall Score: 9.2/10

GH CALiMAGicGallon is a highly rated plant nutrition product available on Amazon. With great nutrition for plants, it delivers amazing results. The product is easy to use and perfect for all types of grows. It comes in a convenient gallon size and provides essential nutrients that promote healthy growth. The dimensions of the product are 5.90Lx5.90Wx11.60H. Customers love the fast delivery and effectiveness of GH CALiMAGicGallon. It has received a customer rating of 4.8/5 based on positive feedback. If you're looking for a quality plant nutrition solution, GH CALiMAGicGallon is a must-buy!

GH CALiMAGicGallon is an essential product for anyone looking to provide their plants with excellent nutrition. It delivers amazing results, promoting healthy growth and development. With fast delivery and ease of use, this product is highly recommended. However, users should take caution not to use excessive amounts. Overall, GH CALiMAGicGallon is a must-buy for all gardening enthusiasts.

Humboldts Secret CalMag & Iron Supplement

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Overall Score: 9/10

The Humboldts Secret Calcium, Magnesium, and Iron Supplement is a must-have for any gardener. This liquid nutrient fertilizer is designed to support the vegetative and flowering stage of plants. It is a source of calcium, magnesium, and chelated iron, which are essential micronutrients for flowering plants. Whether you have a hydroponic system, soil garden, or container garden, this supplement is suitable for all. It promotes optimal nutrient uptake and absorption, correcting any deficiencies that may be present. This quart-sized formula is particularly recommended for plants growing in coco substrate or using reverse osmosis water. With a customer rating of 4.6/5, this product has received positive feedback from repeat buyers. It is an effective solution for plant health and yields.

The Humboldts Secret Calcium, Magnesium, and Iron Supplement is a top-notch product that provides essential micronutrients for flowering plants. It effectively corrects any deficiencies and promotes healthy growth. Whether you’re a hydroponic gardener or prefer soil or container gardens, this supplement is suitable for all. The formula is well-balanced and designed to support nutrient uptake and absorption. It is particularly recommended for plants growing in coco substrate or using reverse osmosis water. While there may be a slight issue with product floating up in water and the container size is small, overall, this product delivers outstanding results. With a customer rating of 4.6/5, it has received excellent feedback from users. Invest in this supplement for strong and vibrant plants.

Fox Farm Plant Fertilizer Soil Bundle

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Overall Score: 8/10

The Fox Farm Plant Fertilizer Soil Bundle is a pack of 4-16 oz bottles that includes Big Bloom, Grow Big, Tiger Bloom, and Cal-Mag. These liquid plant food and supplements are formulated to support plant growth and development. Big Bloom can be used every time you water, while Grow Big promotes lush vegetative growth. Tiger Bloom encourages abundant fruit and flower development, and Cal-Mag helps strengthen cell walls and aid in fruit development. The bundle also includes a Twin Canaries Chart for easy reference. This fertilizer bundle is suitable for all plants and is made with organic input materials. However, beginners should be cautious with dosing to avoid burning their plants.

The Fox Farm Plant Fertilizer Soil Bundle is a versatile and effective set of fertilizers and supplements for plants. It provides essential nutrients for growth and development, supporting lush foliage and abundant fruits and flowers. The inclusion of a chart makes it easy to use, and the organic formulation is a plus for eco-conscious gardeners. However, beginners should exercise caution with dosing, as improper use can lead to plant damage. Overall, this bundle is highly recommended for experienced gardeners looking to enhance their plant’s vitality and productivity.

Organic Cal-Mag OAC Plant Nutrient and Supplement

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Overall Score: 9/10

The Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients is a high-quality organic nutrient system that is designed to support the growth and health of all plants. This nutrient formula contains organic calcium, magnesium, and micronutrients that are micro-chelated with organic acids for better bio-availability. By applying Cal-Mag in every stage of growth, you can ensure strong stalk and leaf health. The product is also 100% compatible with other nutrient systems and can enhance the bio-availability of other minerals. It is formulated and made in the USA by sustainability conscious plant scientists and craft growing enthusiasts. With its highest quality ingredients and manufacturing methods, this nutrient system is the best choice for conscientious growers.

The Organic Cal-Mag OAC Plant Nutrient and Supplement, Plus Iron and Micronutrients by TPS Nutrients is a top-quality organic nutrient system that provides essential calcium, magnesium, and micronutrients for healthy plant growth. It is highly effective in preventing common growth deficiencies and works well with other nutrient systems. The product is made with the highest quality ingredients and manufacturing methods, making it a reliable choice for conscientious growers. However, the lack of ingredient disclosure and unresponsiveness from the company regarding ingredient inquiries are notable drawbacks. Overall, this nutrient system is a great option for those seeking an organic and potent solution for their gardening needs.

Cal-Mag Plus Plant Supplement Liquid

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Overall Score: 8/10

The Cal-Mag Plus Plant Supplement Liquid is a concentrated blend of calcium and magnesium designed to correct common deficiencies in plants. This highly fortified supplement can be used in hydroponics, containers, coco, hydro gardens, and soil. It is suitable for any crop, including tomatoes, lettuce, peppers, and fruit-bearing plants. By preventing secondary nutrient deficiencies and issues like blossom end rot, this supplement promotes enhanced growth and healthy plants. It is recommended for use when growing in unbuffered coco coir-based mediums and when using reverse osmosis filtered water. With easy-to-follow instructions, this supplement provides an effective solution for stunted growth, interveinal chlorosis, and leaf curl. However, some users have experienced leaking packaging and difficulty in measuring from the container.

The Cal-Mag Plus Plant Supplement Liquid is a reliable and affordable option for gardeners dealing with calcium and magnesium deficiencies in plants. It effectively addresses common issues like stunted growth, yellowing leaves, and nutrient imbalances. With its versatile application methods and suitability for various crops, this supplement offers convenience and versatility. While the packaging may have some flaws and measuring from the container can be challenging, these minor inconveniences can be overcome by transferring the product to a more suitable container. Overall, the Cal-Mag Plus Plant Supplement Liquid provides excellent value for its price and delivers noticeable results.

Greenway Biotech Cal-Mag Plus Hydroponic Concentrate

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Overall Score: 9/10

The Greenway Biotech Cal-Mag Plus Hydroponic 2-0-0 Concentrate is a premium fertilizer specifically formulated for all types of plants. It contains the perfect balance of Calcium, Magnesium, Nitrogen, and Chelated Iron EDTA to promote blooming and healthy growth. This fertilizer is ideal for hydroponics and soil growing, providing the highest yield. The Cal-Mag Plus is made with high-quality ingredients, sourced from Israel and the Netherlands, ensuring superior results. It prevents common growth deficiencies and acts as a catalyst for increased uptake of essential minerals. The fertilizer is free from harmful substances and heavy metals, making it safe for use with hydroponic crops. With its dry concentrated form, simply mix with water to make 1 gallon of solution. Improve your plant's health and achieve impressive results with the Greenway Biotech Cal-Mag Plus Hydroponic 2-0-0 Concentrate.

The Greenway Biotech Cal-Mag Plus Hydroponic 2-0-0 Concentrate is a highly recommended fertilizer for all types of plants, whether in hydroponics or soil growing. Its proprietary formula and premium ingredients ensure superior results, preventing common growth deficiencies and promoting healthy plants. The fertilizer’s versatility, safety, and ease of use make it a great choice for both beginners and experienced gardeners. While some customers reported issues with clumping and difficulty in dissolving, the majority of reviews praised its effectiveness and value for money. Overall, this Cal-Mag Plus concentrate is a reliable and efficient product that will help you achieve impressive yields and thriving plants in your garden.

FoxFarm FX17010 Bush Doctor Cal-Mag

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Overall Score: 8.6/10

Introducing FoxFarm FX17010 Bush Doctor Cal-Mag, the ultimate solution to prevent blossom end rot and tip burn. This powerful formula contains calcium and magnesium, which strengthen cell walls and promote healthy fruit development. Say goodbye to costly deficiencies that can hinder your garden's success. The product is OMRI Listed and CDFA Registered for Organic Gardening, ensuring that it meets the highest standards. With a Cal-Mag supplement ratio of 1-0-0 and 3% calcium and 0.9% magnesium, this product is suitable for a variety of gardening needs. At 16 oz in size and measuring 2.50Lx2.50Wx8.00H, it is compact and easy to use. Featuring rave customer reviews and a high rating of 4.7/5, FoxFarm FX17010 Bush Doctor Cal-Mag is the go-to choice for any gardener seeking optimal plant health and growth.

FoxFarm FX17010 Bush Doctor Cal-Mag is a reliable and effective solution to common plant deficiencies. With its powerful blend of calcium and magnesium, it fortifies cell walls and promotes healthy fruit development. The product’s organic certification makes it a preferred choice for environmentally-conscious gardeners. While it may not be suitable for DWC with drip systems, this minor limitation is outweighed by its overall effectiveness. The compact size and easy-to-use nature of FoxFarm FX17010 Bush Doctor Cal-Mag make it a convenient addition to any garden. Highly recommended for those seeking lush, vibrant plants without the drawbacks of common deficiencies.

Buyer's Guide: General Hydroponics Cal Mag

Here is your ultimate buyer's guide on General Hydroponics Cal Mag. Whether you're a veteran or a newbie in the world of hydroponics, this guide will equip you with essential knowledge about Cal Mag and help you make an informed decision.

Benefits of General Hydroponics Cal Mag

• Promotes Plant Health: Cal Mag is a crucial supplement that provides much-needed calcium and magnesium to plants, allowing them to grow vigorously and stay healthy.
• Corrects Nutrient Imbalance: Many hydroponic systems lack sufficient amounts of calcium and magnesium. Cal Mag acts as a corrective measure, ensuring your plants receive the proper balance of nutrients.
• Enhances Nutrient Uptake: Calcium and magnesium play vital roles in nutrient absorption by plants. Adding Cal Mag to your hydroponic setup can significantly optimize nutrient uptake and overall plant performance.
• Prevents Deficiencies: Calcium and magnesium deficiencies can lead to issues like stunted growth, leaf discoloration, and reduced fruit production. Cal Mag acts as a preventive measure and helps avoid these problems.
• Supports Blooming and Fruiting: Adequate calcium and magnesium levels help plants develop strong cell walls and transport nutrients effectively, ultimately leading to better blooming and fruit production.
• Improves Stress Tolerance: Cal Mag strengthens your plants' resilience against environmental stressors like excessive heat, cold temperatures, or high humidity levels.

Factors to Consider Before Buying General Hydroponics Cal Mag

• Plant Requirements: Understand the specific needs of your plants to determine if they require additional calcium and magnesium supplementation. Certain plant varieties may need more Cal Mag, while others may not require it at all.
• Quality of Ingredients: Ensure that General Hydroponics Cal Mag uses high-quality ingredients without any impurities or harmful additives. Pure and properly formulated Cal Mag supplements are essential for the best results.
• Ease of Application: Consider the ease of use and compatibility with your existing hydroponics setup. Look for user-friendly features like liquid form, accurate dosage instructions, and compatibility with various growing mediums.
• Nutrient Concentration: Different plant stages may require varying levels of calcium and magnesium. Check if General Hydroponics Cal Mag provides adjustable nutrient concentrations to cater to different growth phases.
• Compatibility with Nutrient Solutions: If you already use a specific nutrient solution brand, ensure that General Hydroponics Cal Mag is compatible with it to avoid any potential chemical reactions or nutrient imbalances.

How to Use General Hydroponics Cal Mag

1. Read Instructions: Carefully read and understand the manufacturer's instructions provided with General Hydroponics Cal Mag before usage.
2. Measure Accurately: Use a precise measuring instrument, such as a calibrated dropper or syringe, to measure the required amount of Cal Mag accurately.
3. Mix with Water: Add the measured amount of General Hydroponics Cal Mag to your hydroponics reservoir, mixing it thoroughly with water.
4. Adjust pH Levels: After adding Cal Mag, monitor and adjust the pH levels of your nutrient solution to ensure optimal nutrient uptake by the plants.
5. Regular Application: Follow the recommended dosage and application frequency according to the instructions provided by General Hydroponics. It is usually advisable to apply Cal Mag during regular nutrient solution changes or once a week as a supplement.