Top 10 Calcium for saltwater aquarium in 2026

AQUAFOREST - Calcium - 850 gr - Additive for calcium

(20 reviews)

9.99 €

Calcium 850 gr from Aquaforest allows to maintain the level of calcium or to increase it, in reef aquariums.

• En promotion
• 10 en stock

Calcium 850 gr from Aquaforest allows to maintain the level of calcium or to increase it, in reef aquariums.

- ZOANTHUS.FR - Calcium hydroxide 1 kilo

(29 reviews)

7.99 €

Calcium hydroxide Ca(OH)2 can be used for the preparation of lime water. This saturated solution of calcium hydroxide helps provide calcium and maintain the alkalinity of your aquarium.

pure >98.0%, Ph Eur, USP, FCC, E 526e

• En promotion
• en réappro

Calcium hydroxide Ca(OH)2 can be used for the preparation of lime water. This saturated solution of calcium hydroxide helps provide calcium and maintain the alkalinity of your aquarium. pure >98.0%, Ph Eur, USP, FCC, E 526e

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
• 3 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