Top 10 Magnesium for saltwater aquarium in 2026

- ZOANTHUS.fr - Zoa Magnesium - 2kg

(18 reviews)

17.99 €

Zoanthus Magnesium is a balanced blend of magnesium chloride and sulfate . It safely increases magnesium levels in reef aquariums while maintaining ionic balance.

Magnesium chloride, purity >99.0%, Ph.Eur, USP, E 511

All products in our range are prepared and packaged on site in our warehouse.

Products are now packaged in resealable pouches for less breakage during shipping. They're also more environmentally friendly, with 80% less plastic than our previous packaging.

• En promotion
• en réappro

Zoanthus Magnesium is a balanced blend of magnesium chloride and sulfate . It safely increases magnesium levels in reef aquariums while maintaining ionic balance. Magnesium chloride, purity >99.0%, Ph.Eur, USP, E 511 All products in our range are prepared and packaged on site in our warehouse. Products are now packaged in resealable pouches for less breakage during shipping. They're also more environmentally friendly, with 80% less plastic than our previous packaging.

AQUAFOREST - Magnesium - 750g - Magnesium for marine...

(17 reviews)

7.99 €

Product used to maintain a stable level of magnesium in reef aquariums.

• En promotion
• en réappro

Product used to maintain a stable level of magnesium in reef aquariums.

ATI - Essentials Mixed Reef Set 2x10L

(4 reviews)

119.99 €

ATI Essentials Mixed Reef Set 2x10L – the complete solution for balanced mixed reefs

Designed for mixed reef aquariums, ATI Essentials Mixed Reef Set 2x10L offers a simple, effective, and modern approach to daily supplementation. This ultra-concentrated liquid system covers all the major and trace elements essential for healthy coral growth, while maintaining the overall water balance. Suitable for tanks with a medium to high fish population , it helps maintain stable parameters, promotes coral growth, coloration, and metabolism , and limits ionic drift. Ready to use, easy to dose, and designed for precise adjustment to the tank's actual needs , this 2x10L set is a reliable choice for worry-free maintenance.

• Provides all the major elements and trace amounts without risk of overdose.
• Ideal formula for mixed reef aquariums with fish
• Simple titration with identical volumes for both solutions

• En promotion
• 5 en stock

ATI Essentials Mixed Reef Set 2x10L – the complete solution for balanced mixed reefs Designed for mixed reef aquariums, ATI Essentials Mixed Reef Set 2x10L offers a simple, effective, and modern approach to daily supplementation. This ultra-concentrated liquid system covers all the major and trace elements essential for healthy coral growth, while maintaining the overall water balance. Suitable for tanks with a medium to high fish population , it helps maintain stable parameters, promotes coral growth, coloration, and metabolism , and limits ionic drift. Ready to use, easy to dose, and designed for precise adjustment to the tank's actual needs , this 2x10L set is a reliable choice for worry-free maintenance. Provides all the major elements and trace amounts without risk of overdose. Ideal formula for mixed reef aquariums with fish Simple titration with identical volumes for both solutions