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Brightwell Aquatics Magnesion Liquid Reef Supplement is a highly-concentrated ionic magnesium solution. Magnesium helps regulate calcium & carbonate balance and is a component of aragonite, which helps build reef-building organisms' skeletal material.
Magnesion 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 organisms such as corals, clams, and their allies to form skeletal material. It contains no unwanted organic material such as EDTA, gluconate, or polygluconate. Stronger than most competing products. Formulated by a marine scientist.