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General Hydroponics CALiMAGic Quart is a concentrated liquid fertilizer delivering essential calcium and magnesium to fast-growing, calcium-hungry plants. Designed to prevent common nutrient deficiencies like blossom end rot and tip burn, it dissolves cleanly without clogging irrigation systems. Suitable for hydroponics, soil, and coco coir, CALiMAGic supports robust plant development and healthier yields across a variety of crops, making it a must-have for serious growers.









| ASIN | B00GZRKI40 |
| Best Sellers Rank | #3,268 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #186 in Garden Fertilizers |
| 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 9,397 Reviews |
| Global Trade Identification Number | 00783942912197 |
| Included Components | Gardening^Fertilizer and Soil^fertilizers |
| Item Form | Spray |
| Item Type Name | Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble |
| Item Weight | 2.9 Pounds |
| Liquid Volume | 946.35 Milliliters |
| Manufacturer | General Hydroponics |
| Mixing Ratio | 1:1000 |
| Model Number | HGC733525 |
| Number of Items | 1 |
| Part Number | HGC733525 |
| Specific Uses For Product | Hydroponics |
| Target Species | Vegetables |
| UPC | 745682303994 309277145422 714639457172 783942912197 793094017725 811920242087 885617468234 |
| Unit Count | 32.0 Fluid Ounces |
| Warranty Description | Warranty |
J**M
Essential affordable and quality health
General Hydroponics CALiMAGic is an exceptional product that holds numerous benefits for indoor cannabis cultivation. With its concentrated blend of calcium and magnesium, it addresses crucial nutrient deficiencies and enhances the growth and development of cannabis plants in hydroponic systems. One of the key benefits of CALiMAGic is its ability to prevent blossom end rot and tip burn. These issues commonly affect cannabis plants and can lead to reduced yields and compromised quality. By providing the necessary calcium and magnesium, CALiMAGic helps maintain optimal nutrient levels, reducing the risk of these problems and ensuring healthier, more robust plants. Indoor cannabis cultivation often relies on hydroponic systems, where precise nutrient delivery is essential. CALiMAGic excels in this regard, as it dissolves easily and remains in solution, allowing for efficient absorption by cannabis roots. This promotes faster nutrient uptake and supports overall plant health and vigor. Cannabis plants have specific nutrient requirements, and CALiMAGic meets those needs effectively. Calcium and magnesium are vital for numerous biological processes, including enzyme activation, photosynthesis, and cell wall development. By supplying these secondary nutrients in a concentrated form, CALiMAGic optimizes cannabis growth and helps achieve better yields. Furthermore, CALiMAGic's versatility makes it an ideal choice for indoor cannabis growers. Whether you prefer soil, coco coir, or hydroponic setups, CALiMAGic seamlessly integrates into any growing medium. This flexibility allows you to use the product with confidence, regardless of your preferred cultivation method. CALiMAGic also offers excellent value for money. The 1-quart bottle provides a generous quantity for multiple applications, making it a cost-effective solution for cannabis growers. Users appreciate that a little goes a long way, ensuring long-lasting use without compromising on quality. In summary, General Hydroponics CALiMAGic stands out as a highly beneficial product for indoor cannabis cultivation. Its ability to address crucial nutrient deficiencies, prevent common issues like blossom end rot and tip burn, and support overall plant health makes it a trusted choice among cannabis growers. With its versatility, ease of use, and cost-effectiveness, CALiMAGic proves to be an invaluable asset for maximizing yields and achieving successful indoor cannabis cultivation.
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!
B**N
Ease of use
I love this stuff. I’ve ordered it quite a few times every time it is delivered on time the amount that you get for the price is great. This is a superior product to some other products that claimed to be cal mag my plants. Definitely see the difference very easy to use very straightforward instructions just an overall good product. I recommend it to anybody growing in any kind of media. It will do what you need.
S**N
Love this
This CALiMAGic supplement from General Hydroponics has been a total game changer for my plants. If you’re dealing with calcium or magnesium deficiencies, this stuff works fast and reliably. Within just a short time of using it, I noticed stronger stems, healthier leaves, and a deeper, richer green color overall. It really helped clear up the yellowing and spotting I was seeing before, especially in my more sensitive plants. The difference was noticeable enough that I now consider it an essential part of my feeding routine. What I like most is how easy it is to use—it mixes well with water, doesn’t leave any weird residue, and integrates smoothly with my other nutrients without causing issues. The 1-0-0 formula is perfect for supplementing without throwing off the rest of your nutrient balance. The bottle size is also great value for the price. A little goes a long way, so it lasts longer than expected, even with regular use. Overall, this is a must-have if you’re serious about plant health, whether you’re growing in hydroponics or soil. Reliable, effective, and worth every penny—I’ll definitely keep buying this.
J**N
My go to brand
Good product, GH is my go to line for nutrients, additives and other items.
G**R
Its not BRAWNDO, but its what plants crave!
Many plants grown specifically under LED light indoors usually gobble this stuff up. I need it, it works, Im buying more.
.**.
Yes!!
Literally the BEST addition to my plants. Esp my alocasias.
J**D
If you want your plants to thrive, they need this!
My plants looked decent with just their standard nutrients, but after switching many of them to semi-hydro and watching them grow ever so slowly, I looked to find what they might be missing. Using filtered water, they were not getting enough calcium. I ordered this bottle and was pleased when it arrived. It’s a nice strong bottle and was sealed very well (I tend to drop things while rushing around) and it’s a good size and will last me a very long time. Using 1 teaspoon per gallon, this will make 192 gallons! It is a very cost effective way to add these missing nutrients into your plants water. All of my plants, in soil and in LECA, are thriving after the addition of this product and they are pushing out new, deep green healthy leaves. It took me a couple weeks to see a noticeable difference, but it’s there and I will always include this in my nutrient mix. I occasionally foliar-feed my plants and I love that this doesn’t clog my pump sprayer! As a side note, it is very important that you mix your nutrients in the correct order, because of the chemistry between water molecules and minerals. If you use Silica, add that first, but Cal-Mag must come BEFORE your basic nutrient supplement is added, or none of the nutrients will be accessible to your plants! Purchasing this Cal Mag will not help a bit if it’s mixed incorrectly. Best of luck to you all!
Trustpilot
1 week ago
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