A water treatment formula that de-chlorinates and removes chlorine and chloramine from tap water to make it safe for fish. By improving water quality you improve naturally improve the health of the fish in your aquarium. Directions are included in the for the correct dosage and ratio. Balancing the PH levels in your system comes with a wide range of benefits for healthy plants and fish life. The formula is fast-acting making it more convenient than leaving water out overnight to dechlorinate.