---
product_id: 53170370
title: "NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml"
brand: "nt labs"
price: "$106"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/53170370-nt-labsnt-labs-koi-care-malachite-koi-medicine-malachite-green
store_origin: NZ
region: New Zealand
---

# 7-day continuous treatment 1.0% Malachite Green concentration Dosage based on precise pond volume calculation NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml

**Brand:** nt labs
**Price:** $106
**Availability:** ✅ In Stock

## Summary

> 💥 Defend your koi pond with precision and power!

## Quick Answers

- **What is this?** NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml by nt labs
- **How much does it cost?** $106 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/53170370-nt-labsnt-labs-koi-care-malachite-koi-medicine-malachite-green)

## 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

- • **Trusted Legacy Brand:** 40 years of koi care expertise trusted by professionals and enthusiasts alike.
- • **Simple 7-Day Treatment:** Easy application with a one-week treatment cycle to restore koi health.
- • **Precision Dosage System:** Calculate pond volume for exact dosing—no guesswork, just results.
- • **Powerful Anti-Fungal Formula:** Malachite Green at 1.0% w/v targets stubborn fungal infections effectively.
- • **Safe & Specific Usage Guidelines:** Clear instructions to avoid harm to sensitive species and ensure optimal results.

## Overview

Koi Care Malachite is a 500ml liquid anti-fungal treatment containing 1.0% Malachite Green, designed to combat fungal infections like Saprolegnia on koi fish. Trusted for over 40 years, it offers a precise dosage system based on pond volume and requires a 7-day treatment period, ensuring effective and safe care for your prized koi.

## Description

NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml

## Features

- 【 ANTI-FUNGAL TREATMENT FOR KOI 】: Use when fish show signs of Fungal Infections including white growths on the body, head or fins, which may contain some green or brown discolouration.
- 【 EASY TO USE 】: To work out the required dosage for your pond, calculate the volume of your pond in litres (length x width x depth (in cm)/1000). Mix the appropriate dosage in a clean bucket of pond water, pour evenly over the surface of the pond and leave for 7 days. Switch off UV filtration until treatment has been completed. Aerate the pond well during treatment. If you feel a repeat dose is necessary, check your diagnosis carefully using the Diagnosis Tool; a different medication may be more suitable. Allow 7 days and perform a partial water change before re-treating or treating with a different medication.
- 【 TREATMENT RULES】: Do not use with orfe, rudd, tench or sturgeon/sterlet. Do not use if the water temperature is above 30°C. Do not use in hot, humid, thundery conditions. Do not mix medications.
- 【 EFFECTIVE ACTIVE INGREDIENT 】: Koi Care Malachite contains Malachite Green (1.0% w/v). This ingredient makes it a powerful solution to treat fungal infections on koi.
- 【 THE LEADING RANGE OF KOI CARE PRODUCTS 】: The most highly regarded range of koi products in the industry, trusted for 40 years by both trade customers and consumers alike, this range effectively cares for and protects koi in the environment in which they live. From products that treat parasitic or bacterial infections to a tap water dechlorinator, the NT Labs Koi Care range offers koi enthusiasts everything they could possibly need to keep perfect koi and an equally perfect koi pond.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fish and Aquatic |
| Package Dimensions | 20.8 x 9.1 x 6.9 cm; 556 g |
| Item model number | NT Labs |
| Item Form | Liquid |
| Colour | White |
| Size | 500 ml (Pack of 1) |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Water Treatment |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 556 g |

## Product Details

- **Brand:** NT Labs
- **Liquid volume:** 500 Millilitres
- **Item form:** Liquid
- **Target species:** Fish
- **Manufacturer:** NT Labs

## Images

![NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml - Image 1](https://m.media-amazon.com/images/I/61456quAIvL.jpg)
![NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml - Image 2](https://m.media-amazon.com/images/I/71cvwsUeimL.jpg)
![NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml - Image 3](https://m.media-amazon.com/images/I/71yl71ujOtL.jpg)
![NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml - Image 4](https://m.media-amazon.com/images/I/81TEhamgMDL.jpg)
![NT LabsNT Labs Koi Care Malachite, Koi Medicine, Malachite Green, Anti-Fungal Treatment for Koi, Treats Fungus Caused by Saprolegnia, 500ml - Image 5](https://m.media-amazon.com/images/I/81l00WAIuEL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A really good price for the amount of product
*by B***H on 26 February 2024*

I use pond chemicals every year, and I have to order several items to cover my pond size. I was really impressed by the amount of malachite I received for the price

### ⭐⭐⭐⭐ Four Stars
*by D***S on 23 August 2014*

good product work well

### ⭐⭐⭐⭐⭐ Treatment
*by M***Y on 12 November 2022*

Always good and reliable treatment competive price

## Frequently Bought Together

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*