Help get your tap water ready to go into your aquarium with the Kordon NovAqua Plus Aquarium Water Conditioner. This non-toxic formula works to detoxify tap water, removing all chlorine, chloramines and toxic metals like zinc, iron, copper and others, so you can safely add fish to your saltwater or freshwater aquarium. It also contains special polymer colloids that form a protective slime for fish, and electrolytes that help reduce stress levels in your tank. Plus, it helps prevent viral and protozoan infections with added herbal ingredients.