Brightwell Aquatics 500-ml. Calcion Liquid Calcium Supplement

Highly-concentrated ionic calcium solution

Increases the concentration of calcium in marine aquarium water to provide corals and other reef-building invertebrates with one of the most important elements required for growth

Is ionic rather than chelated, and contains no unwanted organic material such as EDTA, gluconate, or polygluconate

Over 50% stronger than most competing products

Free of phosphate, silicate, and organic material

Formulated by a marine scientist