--- product_id: 53170368 title: "NT Labs Koi Care GH Minerals Up (1.5kg)" brand: "nt labs" price: "¥12371" currency: JPY in_stock: true reviews_count: 8 url: https://www.desertcart.jp/products/53170368-nt-labs-koi-care-gh-minerals-up-1-5kg store_origin: JP region: Japan --- # Safely boosts GH levels Precise dosage with calculator Made in UK, premium quality NT Labs Koi Care GH Minerals Up (1.5kg) **Brand:** nt labs **Price:** ¥12371 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your pond’s vitality with precision and care! ## Quick Answers - **What is this?** NT Labs Koi Care GH Minerals Up (1.5kg) by nt labs - **How much does it cost?** ¥12371 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/53170368-nt-labs-koi-care-gh-minerals-up-1-5kg) ## Best For - nt labs enthusiasts ## Why This Product - Trusted nt labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tested & trusted:** Pair with NT Labs Hardness Test Kit to maintain GH above 8 dGH - • **Effortless dosing:** Use our online calculator for perfect pond volume measurement - • **Universal pond care:** Ideal for beginners and pros, ensuring consistent water quality - • **Optimal aquatic habitat:** Safely elevates general hardness for thriving pond life - • **Scientifically balanced minerals:** Calcium & magnesium support fish growth and metabolism ## Overview NT Labs Koi Care GH Minerals Up is a premium 1.5kg powder designed to safely increase the general hardness (GH) of pond water, enriching it with essential calcium and magnesium minerals. Manufactured in the UK to strict quality standards, it supports optimal fish health and metabolism by maintaining GH levels above 8 dGH. Easy to dose with an online calculator and compatible with NT Labs test kits, it’s perfect for all pond keepers seeking reliable, science-backed water treatment. ## Features - 【SAFELY INCREASES GENERAL HARDNESS】: NT Labs GH Minerals Up safely increases the GH providing an optimal habitat for your fish and other pond life. - 【BOOSTS GH LEVELS IN YOUR POND】: General hardness minerals such as calcium and magnesium are essential for aquatic biological functions. Such minerals are used in fish growth, metabolism and other physiological functions. General hardness minerals can decrease over time due to influx of rainwater, soft tap water and biological processes using these minerals. - 【EASY TO USE】: To work out the required dosage for your pond, simply calculate the volume of your pond in litres (length x width x depth (in cm)/1000) or alternatively, use our Online Dosage Calculator. Dissolve the powder in a bucket of pond water before adding to the pond. - 【USE IN CONJUNCTION WITH NT LABS TEST KITS】: Use NT Labs Hardness Test Kit to measure the GH of the pond water. Always keep the GH above 8 dGH for optimal water quality. GH Minerals Up can also be used to provide additional general hardness where tap water is naturally low in hardness minerals. - 【 SUITABLE FOR ALL POND KEEPERS 】: The ease of use of Koi Care GH Minerals Up means it is perfect for use by beginners and seasoned pond keepers alike. - [ MADE IN BRITAIN ] : Proudly formulated and manufactured in the UK to strict quality, environmental and safety standards, delivering exceptional product reliability you can trust. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00AHA2HIQ | | Best Sellers Rank | 20,638 in Garden (See Top 100 in Garden) 150 in Water Garden & Pond Treatment | | Brand Name | NT Labs | | Country Of Origin | United Kingdom | | Customer Reviews | 4.6 4.6 out of 5 stars (61) 4.6 out of 5 stars | | Included Components | Powder | | Item Form | Powder | | Item Type Name | Pond Fish Food | | Liquid Volume | 1.5 Kilograms | | Manufacturer | NT Labs | | Manufacturer Part Number | 00425 | | Model Number | NT Labs | | Number Of Items | 1 | | Pet Type | Fish | | Target Species | Fish | | Unit Count | 5000.0 gram | | Upc | 733809004251 | ## Product Details - **Brand:** NT Labs - **Item form:** Powder - **Item weight:** 600 Grams - **Liquid volume:** 1.5 Kilograms - **Manufacturer:** NT Labs ## Images ![NT Labs Koi Care GH Minerals Up (1.5kg) - Image 1](https://m.media-amazon.com/images/I/71Th01lr4iL.jpg) ![NT Labs Koi Care GH Minerals Up (1.5kg) - Image 2](https://m.media-amazon.com/images/I/71d5843yOPL.jpg) ![NT Labs Koi Care GH Minerals Up (1.5kg) - Image 3](https://m.media-amazon.com/images/I/81RSR5fMsIL.jpg) ![NT Labs Koi Care GH Minerals Up (1.5kg) - Image 4](https://m.media-amazon.com/images/I/81JueCyXP3L.jpg) ![NT Labs Koi Care GH Minerals Up (1.5kg) - Image 5](https://m.media-amazon.com/images/I/71uRXyDc5CL.jpg) ## Available Options This product comes in different **Size Name** options. ## Questions & Answers **Q: Can you use with pump feed ponds** A: Yes. No probs. As far as i understand its also benificial to your filter . Used it for a couple of years now along with kh up. And koi clay. All good . **Q: What’s is a ratio mg to ca ?** A: No idea, all I do know if the water hardeness is well below the 8dh level the pond quality will function less,due to a depletion of minerals in the water, which in turn can affect the fish plus the PH level, best contact NT labs for more information, that's why I check mine on a regular basis along with other chemical tests ## Customer Reviews ### ⭐⭐⭐⭐⭐ Really good *by on Reviewed in the United Kingdom 2 May 2026* Really good. Doesn't cloud the water like some gh buffers do and excellent value ### ⭐⭐⭐⭐⭐ Good *by on Reviewed in the United Kingdom 12 June 2026* Good product & good priceGood service 👍 ### ⭐⭐⭐⭐⭐ A good service and a good quality product which corrected my ... *by on Reviewed in the United Kingdom 16 March 2015* A good service and a good quality product which corrected my garden pond water hardness in a very short time. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/53170368-nt-labs-koi-care-gh-minerals-up-1-5kg](https://www.desertcart.jp/products/53170368-nt-labs-koi-care-gh-minerals-up-1-5kg) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-20*