Brightwell Aquatics Magnesion - Liquid Magnesium Supplement for Reef Aquaria 2L / 67.6oz

• Highly-concentrated ionic magnesium solution.• Provides magnesium, which helps regulate the balance between calcium and carbonates in aquariumwater, and is a component of aragonite, the mineral secreted by reef-building organisms such as corals,clams, and their allies to form skeletal material.• Stronger than most competing products.• Contains no unwanted organic material such as EDTA, gluconate, or polygluconate.• Formulated by a marine scientist.Liquid2-L