






🌱 Elevate your grow game—because your plants deserve the VIP treatment!
General Hydroponics CALiMAGic is a concentrated, water-soluble blend of calcium and magnesium designed to prevent nutrient deficiencies like blossom end rot and tip burn. Perfect for hydroponic and soil-based systems, it supports fast-growing, calcium-intensive crops by optimizing nutrient uptake and enhancing overall plant health.









| ASIN | B00GZRKI40 |
| Best Sellers Rank | 478,927 in Garden ( See Top 100 in Garden ) 1,888 in Hydroponic Nutrients & Additives |
| Brand | General Hydroponics |
| Brand Name | General Hydroponics |
| Coverage | Fast-growing plants, tomatoes, lettuce, and other calcium-intensive plants |
| Customer Reviews | 4.8 out of 5 stars 7,656 Reviews |
| Global Trade Identification Number | 00783942912197 |
| Included Components | Gardening^Fertilizer and Soil^fertilizers |
| Item Form | Spray |
| Item Weight | 2.75 Pounds |
| Item form | Spray |
| Item weight | 2.75 Pounds |
| Liquid Volume | 946.35 Millilitres |
| Liquid volume | 946.35 Millilitres |
| Manufacturer | Hydrofarm, Inc. |
| Mixing Ratio | 1:1000 |
| Model Number | HGC733525 |
| Number of Items | 1 |
| Part Number | HGC733525 |
| Specific Uses For Product | Hydroponics |
| Specific uses for product | Hydroponics |
| UPC | 745682303994 309277145422 714639457172 783942912197 793094017725 811920242087 885617468234 |
| Unit Count | 32.0 millilitre |
B**N
Great Supplement for Preventing Nutrient Deficiencies in Hydroponic Systems
I’ve been using General Hydroponics CALiMAGic for the past few months in my hydroponic grow system, and it has made a noticeable difference in the health and growth of my plants. If you're experiencing calcium or magnesium deficiencies in your plants, this product is a lifesaver. Pros: Effective at preventing nutrient deficiencies: After incorporating CALiMAGic into my nutrient schedule, I saw immediate improvement in leaf quality. Prior to using this, my plants had signs of calcium deficiency (yellowing leaves with brown spots). Within a week, new growth appeared healthy, and the discoloration stopped spreading. Easy to use and mix: I appreciate how quickly it dissolves into the nutrient solution. It doesn’t leave any sediment or cloudiness, which is crucial for maintaining my recirculating deep water culture (RDWC) setup. Versatile for different plants: I’ve used this product on a variety of crops, including leafy greens, tomatoes, and cannabis, and it works equally well across the board. The added magnesium especially helps with chlorophyll production, leading to lusher and more vibrant growth. Cons: Concentration can be tricky: CALiMAGic is highly concentrated, which is great for efficiency, but beginners might overuse it if they're not careful. Be sure to follow the dosage instructions carefully. I recommend starting with half the suggested dose if you’re unsure, then adjusting based on how your plants respond. Price: While the product isn’t overly expensive, there are cheaper alternatives on the market. However, in my experience, CALiMAGic is worth the extra cost because of its consistency and reliability. Overall Experience: After using this product consistently, I’ve noticed my plants are more resistant to stress, and their growth is more robust. It has become a staple in my nutrient regimen, especially for hydroponics. If you're serious about growing healthy plants, CALiMAGic is a must-have. Tips for Use: Monitor your pH: CALiMAGic can slightly raise the pH of your nutrient solution. Make sure to check your pH levels after mixing to avoid any imbalances. Combine with a complete nutrient system: While CALiMAGic addresses calcium and magnesium needs, it’s important to pair it with a balanced nutrient base to cover all of your plants’ requirements. --- I highly recommend General Hydroponics CALiMAGic to anyone who’s serious about their hydroponic system, especially for preventing deficiencies that can halt plant growth. It’s a small investment for big results!
R**W
Cal Mag
Great product, requirement if growing in coco coir
A**A
Good product
Fast delevery and good product thankyou
Z**T
Super
Super
J**H
Good addition but leaves a mess.
The content itself is worth the money but I wish the bottle would’ve had a spout to make it easier to dose.
Trustpilot
2 weeks ago
1 month ago