--- product_id: 83979965 title: "NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life." brand: "nt labs" price: "$159.57" currency: USD in_stock: true reviews_count: 8 category: "Nt Labs" url: https://www.desertcart.us/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg-essential-mineral store_origin: US region: United States of America --- # 5kg powder for large ponds Compatible with NT Labs Test Kits Precisely boosts GH above 8 dGH NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. **Brand:** nt labs **Price:** $159.57 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your pond’s vitality — because your koi deserve the best! ## Quick Answers - **What is this?** NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. by nt labs - **How much does it cost?** $159.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg-essential-mineral) ## 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 - • **Beginner Friendly:** Easy-to-use powder form ideal for both novice and expert pond keepers. - • **Crystal Clear Formula:** Enhances water hardness without clouding, preserving pond aesthetics. - • **Trusted Compatibility:** Works seamlessly with NT Labs Hardness Test Kits for real-time water quality monitoring. - • **Optimal Habitat Booster:** Safely elevates general hardness to support fish metabolism and growth. - • **Precision Dosage Control:** Calculate exact pond volume for tailored mineral enrichment using our online calculator. ## Overview NT Labs Koi Care GH Minerals Up is a 5kg powder designed to safely increase the general hardness (GH) of pond water, ensuring an optimal environment for fish and aquatic life. It replenishes essential minerals like calcium and magnesium, crucial for fish health and metabolism, without clouding the water. Compatible with NT Labs Test Kits, it allows precise dosing tailored to pond size, making it perfect for both beginners and seasoned pond keepers aiming for superior water quality. ## Description Product Description Review: A good service and a good quality product which corrected my ... - A good service and a good quality product which corrected my garden pond water hardness in a very short time. Review: Really good - Really good. Doesn't cloud the water like some gh buffers do and excellent value ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00A4CJBK4 | | Best Sellers Rank | 43,999 in Garden ( See Top 100 in Garden ) 232 in Water Garden & Pond Treatment | | Brand | NT Labs | | Brand Name | NT Labs | | Customer Reviews | 4.6 out of 5 stars 60 Reviews | | Included Components | Powder | | Item Form | Powder | | Item Type Name | Pond Fish Food | | Item Weight | 5 Kilograms | | Item form | Powder | | Item weight | 5 Kilograms | | Manufacturer | NT Labs | | Manufacturer Part Number | 426 | | Model Number | NT Labs | | Target Species | Fish | | UPC | 733809004268 | | Unit Count | 5000.0 gram | | Unit count | 5000.0 gram | ## Product Details - **Brand:** NT Labs - **Item form:** Powder - **Item weight:** 5 Kilograms - **Manufacturer:** NT Labs - **UPC:** 733809004268 ## Images ![NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. - Image 1](https://m.media-amazon.com/images/I/71MCQnsB0gL.jpg) ![NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. - Image 2](https://m.media-amazon.com/images/I/81RSR5fMsIL.jpg) ![NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. - Image 3](https://m.media-amazon.com/images/I/81JueCyXP3L.jpg) ![NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. - Image 4](https://m.media-amazon.com/images/I/71uRXyDc5CL.jpg) ![NT Labs Koi Care GH Minerals Up (5kg) | Essential mineral elements increase general hardness of pond water to maintain an optimal habitat for pond life. - Image 5](https://m.media-amazon.com/images/I/71DesYZVeIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ A good service and a good quality product which corrected my ... *by Z***O on 16 March 2015* A good service and a good quality product which corrected my garden pond water hardness in a very short time. ### ⭐⭐⭐⭐⭐ Really good *by G***R on 2 May 2026* Really good. Doesn't cloud the water like some gh buffers do and excellent value ### ⭐⭐⭐⭐⭐ Good pond product. *by T***O on 9 December 2016* This has helped me keep my Koi and other pond fish healthy and fit ## Frequently Bought Together - NT Labs Koi Care GH Minerals Up, Increases General Hardness of Pond Water, Maintains Pond Water Quality, Provides the Optimal Habitat for Your Fish and Other Pond Life, 5kg - NT Labs Koi Care KH Buffer Up, Increases Carbonate Hardness of Pond Water, Maintains Pond Water Quality, Provides the Optimal Habitat for Your Fish and Other Pond Life, 5kg - 2 x Pure Pond Bomb --- ## 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.us/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg-essential-mineral](https://www.desertcart.us/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg-essential-mineral) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-07*