Reef Endurance Calcium Chloride (4lbs) and other reef-building invertebrates into

and other reef-building invertebrates into aragonite

Closed system aquariums with protein skimming and other ULN (ultra-low nutrient) filtration methods deplete amino acids that are vitally important for coral health

it will add life and interest to your underwater world

This advanced system features an automatic top-off water sensor that ensures your tank stays balanced

Ready to add a splash of color to your aquarium

Reef Endurance Calcium Chloride (4lbs) and other reef-building invertebrates intoReef Endurance Calcium Chloride is a pharmaceutical based aquarium supplement that mixes crystal clear with no unwanted impurities. Maintaining calcium within a range of 412 450ppm in reef aquaria will enable corals and other reef building invertebrates to proliferate. For best results, use in conjunction with Reef Endurance Sodium bicarbonate or Soda Ash as a two part balanced regimen. Replenish and maintain Calcium levels in a reef aquarium