• Concentrated KH buffer supplement for all marine fish and reef aquaria.
• Highly-effective alkalinity(KH)-increasing “buffer” solution.
• Provides a strong source of carbonates, which make up the majority by weight of aragonite, the mineral secreted by reef-building organisms as skeletal material.
• Continued addition raises pH until 8.3 is reached, at which point the pH remains unchanged and the alkalinity alone increases.
• Over 50% stronger than most competing products.
• Free of phosphate, silicate, and organic material.
• Formulated by marine scientist.
• Available in 250 ml, 500 ml, 2L, and 20 L sizes.

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. Alkalinity is of extreme importance in a marine aquarium, owing to the manner in which it influences pH.