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Brightwell Aquatics Magnesion-P - Dry Magnesium Supplement for Reef Aquaria 300g / 10.6oz

Overview High-purity powdered magnesium blend. Provides magnesium, which helps regulate the balance between calcium and carbonates in aquarium water, and is a component of aragonite, the mineral secreted by reef-building org...

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Our Price: $7.59

Item Code: BW01118

Ecosystem Aquarium Eco Magnesium 2 - 300g pouches

Magnesium Powder Concentrate makes 2 gallons liquid product

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Our Price: $49.99

Item Code: EC3281

Elos Expert Line Extra Magnesium 250mL

Expert Line Extra Magnesium 250ml Magnesium (Mg) is present in a high quantity (1300 to 1350 ppm) in natural seawater. Contrary to its not only quantitative significance, this element was ignored as an important parameter of th...

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Our Price: $26.99

Item Code: EO1471

Seachem Reef Advantage Magnesium

SeaChem Reef Advantage Magnesium ™ is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the ionic ratios found in natural ...

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$4.99 to $35.99

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