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This highly concentrated ionic magnesium solution from Brightwell Aquatics helps regulate the balance between calcium and carbonates in aquarium water. Magnesium is a component of aragonite, the mineral secreted by reef-building organisms to form skeletal material.
Magnesion contains no unwanted organic material such as EDTA, gluconate or polygluconate. 500-mL bottle treats 2,000 gal.
International customers: Check with your customs agent to determine whether this product can be shipped to your country.