Reef Endurance Calcium Chloride (4lbs) Closed system aquariums with protein

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

Composed of purified water and ultra-high purity ingredients

This captive-bred variant thrives in reef environments

this fuzzy dwarf lionfish will bring a touch of elegance to any aquarium

Reef Endurance Calcium Chloride (4lbs) Closed system aquariums with proteinReef 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