Aqua conditioner; binds and neutralizes ammonia, chlorine and toxic heavy metals in the water. Provides healthy water for aquariums. Provides a healthier environment for fishes with additional minerals. Does not changes the ph of the water. It affects very fast. You can either use it to the change water or directly to the aquarium. Suitable for use in both saltwater and freshwater aquariums. Helps establish biological balance while building a new aquarium. Add 5 ml for each 100 liters of change water in a separate container. Mix the water thoroughly and let it sit for at least one hour. Change water and the aquarium water shoud be at the same tempereture. Close the lter and heaters of your aquarium and drain water from the aquarium as much as the change water. Slowly add the change water you prepared with the aqua conditioner to the aquarium. 500 ml is enough for 10,000 liters. Made with high quality chemicals that not only gets rid of chlorine like other aquarium conditioners, it also gets rid of excess ammonia which is toxic for all aquarium creatures.