---
product_id: 83979965
title: "NT Labs Koi Care GH Minerals Up (5kg)"
brand: "nt labs"
price: "¥38691"
currency: JPY
in_stock: true
reviews_count: 8
category: "Nt Labs"
url: https://www.desertcart.jp/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg
store_origin: JP
region: Japan
---

# Safely boosts GH levels Precise dosage with calculator Made in Britain quality NT Labs Koi Care GH Minerals Up (5kg)

**Brand:** nt labs
**Price:** ¥38691
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your pond’s health with precision and purity!

## Quick Answers

- **What is this?** NT Labs Koi Care GH Minerals Up (5kg) by nt labs
- **How much does it cost?** ¥38691 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/83979965-nt-labs-koi-care-gh-minerals-up-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

- • **Crystal Clear Water Formula:** Enhances hardness without clouding your pond water
- • **Trusted British Manufacturing:** Formulated under strict UK standards for reliability and safety
- • **Compatible with NT Labs Test Kits:** Monitor and maintain GH above 8 dGH for peak water quality
- • **Optimal GH Balance for Thriving Fish:** Maintains essential calcium & magnesium for healthy metabolism and growth
- • **Effortless Dosage with Online Calculator:** Calculate pond volume and dose accurately every time

## Overview

NT Labs Koi Care GH Minerals Up (5kg) is a premium pond water treatment powder designed to safely increase general hardness (GH) by replenishing essential minerals like calcium and magnesium. Ideal for maintaining optimal aquatic conditions, it supports fish growth and metabolism while preventing water softening caused by rain or tap water. Easy to dose with an online calculator and compatible with NT Labs test kits, this UK-made formula ensures crystal-clear water and a thriving pond ecosystem.

## Description

Product Description

Review: Really good - Really good. Doesn't cloud the water like some gh buffers do and excellent value
Review: Good - Good product & good price Good service 👍

## 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 | B00A4CJBK4 |
| Best Sellers Rank | 33,503 in Garden ( See Top 100 in Garden ) 221 in Water Garden & Pond Treatment |
| Brand | NT Labs |
| Brand Name | NT Labs |
| Country Of Origin | France |
| Customer Reviews | 4.6 out of 5 stars 61 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 |
| Number of Items | 1 |
| 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) - Image 1](https://m.media-amazon.com/images/I/71MCQnsB0gL.jpg)
![NT Labs Koi Care GH Minerals Up (5kg) - Image 2](https://m.media-amazon.com/images/I/81RSR5fMsIL.jpg)
![NT Labs Koi Care GH Minerals Up (5kg) - Image 3](https://m.media-amazon.com/images/I/81JueCyXP3L.jpg)
![NT Labs Koi Care GH Minerals Up (5kg) - Image 4](https://m.media-amazon.com/images/I/71uRXyDc5CL.jpg)
![NT Labs Koi Care GH Minerals Up (5kg) - Image 5](https://m.media-amazon.com/images/I/71DesYZVeIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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
*by T***S on 12 June 2026*

Good product & good price Good service 👍

### ⭐⭐⭐⭐⭐ 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.

## 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.jp/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg](https://www.desertcart.jp/products/83979965-nt-labs-koi-care-gh-minerals-up-5kg)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-14*