---
product_id: 56370555
title: "The Reef Magnesium Chloride 4kg"
brand: "the reef"
price: "€ 127.01"
currency: EUR
in_stock: true
category: "Pet Supplies"
url: https://www.desertcart.fr/products/56370555-the-reef-magnesium-chloride-4kg
store_origin: FR
region: France
---

# The Reef Magnesium Chloride 4kg

**Brand:** the reef
**Price:** € 127.01
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** The Reef Magnesium Chloride 4kg by the reef
- **How much does it cost?** € 127.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/56370555-the-reef-magnesium-chloride-4kg)

## Best For

- the reef enthusiasts

## Why This Product

- Trusted the reef brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Magnesium Chloride can be used to replenish magnesium levels in marine aquaria. Diluted in fresh water and added slowly to an area of high flow, 5 grams of Magnesium Chloride hexahydrate per 100L of aquarium water will raise magnesium levels by around 6ppm. Suitable for use as part of the &apos;Balling Method&apos; for reef aquarium supplementation developed by Hans-Wermer Balling in Germany.

## Features

- Magnesium Chloride hexahydrate flakes MgCl2.6H2O
- Suitable for use in the popular Balling Method
- Manufactured from food grade materials
- Size: 4kg
- Also available in 1kg and 2kg sizes
- ›See more product details

## Images

![The Reef Magnesium Chloride 4kg - Image 1](https://images-na.ssl-images-amazon.com/images/I/51DXlHYrezL.jpg)
![The Reef Magnesium Chloride 4kg - Image 2](https://images-na.ssl-images-amazon.com/images/I/61L2Vy3NqTL.jpg)

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---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-13*