Calcion 2L Brightwell is a highly concentrated ionic calcium solution specifically designed to increase the concentration of calcium in marine aquarium water. This essential supplement provides corals and other reef-building invertebrates with one of the most critical elements required for their healthy growth and skeletal development, ensuring a thriving reef environment.

This premium calcium supplement is ionic rather than chelated, ensuring it contains no unwanted organic material such as EDTA, gluconate, or polygluconate that could negatively impact water quality. It boasts a concentration over 50% stronger than many competing products, and is completely free of phosphate, silicate, and other organic materials. Formulated by a marine scientist, its purity and efficacy are assured.

Calcion 2L Brightwell is ideal for all marine fish and reef aquaria, particularly those with active coral growth that demand consistent and elevated calcium levels. Its concentrated, pure formulation makes it an excellent choice for serious reef keepers seeking to maintain stable parameters and foster robust coral health without introducing undesirable contaminants into their sensitive ecosystems.