---
product_id: 58104725
title: "Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums"
brand: "red sea"
price: "¥1427"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/58104725-red-sea-reef-foundation-c-magnesium-mg-supplement-500ml-maintains
store_origin: JP
region: Japan
---

# Stabilizes reef water chemistry 1ml/100L = +1ppm Mg Premium Israeli formulation Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums

**Brand:** red sea
**Price:** ¥1427
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate Your Reef Game with Precision Magnesium Power!

## Quick Answers

- **What is this?** Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums by red sea
- **How much does it cost?** ¥1427 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/58104725-red-sea-reef-foundation-c-magnesium-mg-supplement-500ml-maintains)

## Best For

- red sea enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Aquarium Care:** Simple dosing keeps your reef thriving without guesswork or hassle
- • **Precision Magnesium Boost:** Easily raise Mg levels by 1ppm per 1ml per 100L for perfect reef balance
- • **Synergistic Reef Foundation:** Optimizes Calcium, Magnesium & Carbonates for unstoppable coral growth
- • **Scientifically Crafted in Israel:** Trusted quality from a leading marine supplement innovator
- • **Supports Vibrant Coral Skeletons:** Enhances photosynthesis and ion exchange for healthier, stronger corals

## Overview

Red Sea Reef Foundation C Magnesium is a 500ml liquid supplement designed to maintain optimal magnesium levels in marine and reef aquariums. By dosing 1ml per 100 liters, it raises magnesium by 1ppm, crucial for stabilizing water chemistry and supporting coral skeleton formation. Manufactured in Israel, this product ensures balanced reef foundation elements for vibrant, healthy coral growth.

## Description

Product Description               A successful coral reef aquarium depends on how well you maintain the water parameters which are the key to a stable coral environment. All of the elements found in natural seawater play a role in providing optimal water parameters, but some are more significant than others. These elements, the foundation of the reef environment, include the three major elements: Calcium (Ca), Magnesium (Mg) and Carbonates (CO3). All three have a major effect on water chemistry (pH stability, Alkalinity, ionic strength) and on many of the coral’s biological processes (skeleton formation, ions exchange, photosynthesis). The foundation elements complement each other in the formation of coral skeleton. If not balanced correctly one of the elements will quickly limit healthy coral growth. Maintaining balanced levels of the Foundation Elements (Ca, KH Mg) creates optimal water conditions for promoting strong and healthy coral growth. Reef Foundation C is a Magnesium complex for balanced formation of Coral SkeletonReef Foundation C (Mg): A blend of Magnesium salts. Concentration: 1ml will raise the Mg level of 100 liters (25gal) by 1ppm.                  Directions               Use 1ml per 100 liters of water. Frequency and precautions not specified.

## Features

- This product is easy to use
- This product adds a great value
- This product is manufactured in Israel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 8 x 20 x 8 cm; 453.59 g |
| Item model number | 306039 |
| Pet Life Stage | Adolescent |
| Item Form | Liquid |
| Allergen Information | Crustacean |
| Size | 500-mL |
| Quantity | 1 |
| Specific Uses | aquarium supplement |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 454 g |

## Product Details

- **Brand:** Red Sea
- **Liquid volume:** 500 Millilitres
- **Item weight:** 1 Pounds
- **Item form:** Liquid
- **Manufacturer:** TopDawg Pet Supply

## Images

![Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums - Image 1](https://m.media-amazon.com/images/I/71XcawfQiaL.jpg)
![Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums - Image 2](https://m.media-amazon.com/images/I/61OzcSMGFHL.jpg)
![Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums - Image 3](https://m.media-amazon.com/images/I/81wICs0grEL.jpg)
![Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums - Image 4](https://m.media-amazon.com/images/I/51KOmTDh00L.jpg)
![Red Sea Reef Foundation C Magnesium (Mg) Supplement, 500ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums - Image 5](https://m.media-amazon.com/images/I/71plVaLV2mL.jpg)

## Frequently Bought Together

- Red Sea Fish Pharm ARE22033 Reef Foundation Magnesium Supplement-C for Aquarium, 500ml (Packaging may vary)
- Red Sea Reef Foundation A Supplement (Ca/Sr) - 500ml
- Red Sea Aqcult 306168 1 LTR Reefer Foundation B Alkalin

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**Shop now:** [https://www.desertcart.jp/products/58104725-red-sea-reef-foundation-c-magnesium-mg-supplement-500ml-maintains](https://www.desertcart.jp/products/58104725-red-sea-reef-foundation-c-magnesium-mg-supplement-500ml-maintains)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-28*