Deliver to UK

For best experience Get the App

Red SeaReef Foundation C Magnesium (Mg) Supplement, 1000ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums

Red SeaReef Foundation C Magnesium (Mg) Supplement, 1000ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums

Q: Anyone using this with good success? how often are you adding magnesium? i have a 150 gallon reef tank mostly lps

I have had great success with this product. I dose 8ml a day in my 250g tank. I use this product because it is magnesium chloride. Other products are magnesium sulfate or sulfite and I already have too many issues with excess sulfur. For me, it’s been a great product

Product ID: 60035165

Secure Transaction

Details

Brand
Red Sea
Liquid Volume
1000
Item Weight
3.25 Pounds
Item Form
Liquid
Target Species
Coral

🌊Supports vibrant coral skeletons

📏Precise dosing for balanced Mg

🧪1ml/100L = +1ppm Mg

Frequently Bought Together

Red Sea Reef Foundation C Magnesium (Mg) Supplement, 1000ml - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums

Red Sea Reef Foundation B Alkalinity (KH) Supplement, 1000ml - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums

Red Sea Reef Energy Plus 1000ml (AB+) All in One Coral Food for Saltwater Aquarium Marine Reef Tanks | Food for Soft, LPS, SPS, and Non-Photosynthetic Corals

Description

🌟 Elevate your reef’s vitality with precision magnesium magic!

TEST DRIVEN DOSING - Pair with Red Sea Magnesium Pro Test Kit for exact, data-driven supplementation
SEAMLESS INTEGRATION - Works perfectly with Reef Foundation A & B for a complete reef maintenance system
SCIENTIFICALLY BACKED - Part of Red Sea’s trusted Reef Care program ensuring reliable results
OPTIMIZED CORAL GROWTH - Formulated to enhance strong, healthy coral skeleton development
PRECISION MAGNESIUM BOOST - Easily raise Mg levels by 1ppm per ml per 100L for tailored reef care

Red Sea Reef Foundation C Magnesium Supplement is a scientifically formulated liquid magnesium complex designed to maintain optimal magnesium levels in marine and reef aquariums. With a precise dosing ratio of 1ml per 100 liters raising magnesium by 1ppm, it supports healthy coral skeleton formation and integrates seamlessly with Red Sea’s Reef Foundation A and B supplements for comprehensive reef care.

Have a Question? See What Others Asked

Anyone using this with good success? how often are you adding magnesium? i have a 150 gallon reef tank mostly lps

Reviews

E**E

Makes coral colors pop!!

I love this product. I dose five dropper fulls every other day in my mix coral reef tank (200L sustem), and all things remaining equal, the colors of my corals pop up beautifully. Some important learnings from AI research: turn of your skimmer for a good 6hrs after dosing and the product is best dosed during twilight.

21.07.2025

D**S

Red Sea for me

Strong and affective I use this the keep my tank functioning properly

20.02.2025

R**H

Simple

I found this very easy to increase Mag in my aquarium.

16.01.2025

N**Z

Red sea

Todo lo que sea red sea es bueno!

28.10.2024

M**!

Excelente

Excelente y fácil de usar

23.09.2023

A**K

Wow!

Great price for the quantity! I would highly recommend this for anyone looking into doing Red Sea or already in Red Sea you will save money!

16.01.2020

A**R

Coral Food

Great product for my corals.

13.04.2021

M**N

Great product

Red Sea products are always the way to go! Fast delivery arrived safely

15.07.2018

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products