• Highly-effective alkalinity-increasing (”buffer”) powdered
  blend for all marine and reef aquaria
• Helps increase pH stability in an aquarium by raising the
  alkalinity; continued addition raises pH until 8.3 is reached, at
  which point the pH remains unchanged and the alkalinity
  alone increases
• Provides a source of carbonates, which make up the majority
  by weight of aragonite, the mineral secreted by reef-building
  organisms as skeletal material
• Formulated by a marine scientist

• Alkalinity, also referred to as carbonate hardness or buffering capacity, is essentially a means of quantifying the stability of pH in a solution, such as aquarium water. In an aquarium, weak acids formed by oxygen respiration and the decomposition of organic material gradually deplete alkalinity. If left unchecked, the alkalinity drops below a critical level and pH begins to fluctuate more wildly than is normally suggested (a daily pH shift of +/-0.2 is normal in marine aquaria), causing stress to livestock. Alkalinity is also depleted by reef-building organisms during the production of aragonite (~60% carbonates by weight), and is therefore very important for their rapid growth. Maintaining the alkalinity in marine aquaria between 7 - 12 dKH (2.5 - 4.3 meq/L) will generally maintain pH within the desired range.