Seachem Aquavitro Salinity 20g

Seachem salinity is a blend of salts specifically formulated for the reef aquarium that contains all essential major, minor, and trace components found in natural reef waters, but contains no toxic or non-essential components. Additionally, salinity is the most concentrated salt blend on the market. With a hydration level of <0.5% salinity will yield a greater volume of prepared saltwater at a salinity of 35° per unit of weight than any other salt mix currently on the market.