Use whenever setting up a new aquarium, changing water or adding water to the aquarium
Heavy metals such as coppe, lead and zinc can be found in most tap water supplies - these metals are toxic to tropical fish, therefore it is important that tap water be treated before adding it to an aquarium
Directions for usage with API dosing cap on bottle:
To remove chlorine and detoxify heavy metals - Add 1mL to 75.7L of tap water being treated
To detoxify chloramines (break the bond) - Add 1mL to 18.9L of tap water being treated