








🌿 Elevate your grow game — don’t let nutrient gaps hold you back!
General Hydroponics CALiMAGic is a highly concentrated liquid supplement delivering essential calcium and magnesium to fast-growing plants. Designed to prevent common secondary nutrient deficiencies like blossom end rot and tip burn, it ensures optimal plant health and vigorous development across a variety of crops. Easy to mix and fully soluble, CALiMAGic integrates seamlessly into hydroponic and soil-less systems, making it a must-have for serious growers aiming for flawless, stress-resistant plants.









| ASIN | B00GZRKI40 |
| Best Sellers Rank | 364,600 in Garden ( See Top 100 in Garden ) 1,662 in Hydroponic Nutrients & Additives |
| Customer Reviews | 4.8 4.8 out of 5 stars (7,488) |
| Date First Available | 26 April 2013 |
| Department | Unisex-Adult |
| Item display height | 8.5 inches |
| Item display length | 3.3 inches |
| Item display weight | 1.5 Kilograms |
| Item display width | 3.3 inches |
| Item model number | HGC733525 |
| Item volume | 946.35 |
| Manufacturer | Hydrofarm, Inc. |
| Material type | Plastic |
| Part number | HGC733525 |
| Product Dimensions | 8.38 x 21.84 x 8.13 cm; 1.25 kg |
B**N
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!
P**R
Product is as described.. Shipping on time. No Complaints.
Z**B
Best CalMag Product on the Market General Hydroponics CALiMAGic Quart is the top CalMag supplement I've used. It consistently supports all types of greenery, ensuring my plants stay healthy and vibrant. Easy to use and highly effective, I always rely on this product for optimal plant growth. Highly recommended for any gardener.
A**A
Fast delevery and good product thankyou
J**H
The content itself is worth the money but I wish the bottle would’ve had a spout to make it easier to dose.
Trustpilot
4 days ago
1 week ago