Betta Bowl Essential neutralizes harmful chlorine, and provides essential ions for fish and plants. It can be used for preparing tap water for new bowls, making water changes, or adding water to make up for evaporation. Betta Bowl Essential contains a special formula of nutrients, conditioners and minerals developed specifically for small bowls containing Bettas and plants. The use of this product on a weekly basis and during water changes restores substances that are absorbed by these organisms. Kent Betta Bowl Essential can be added to purified or tap water to ensure a proper balance of nutrients and minerals for the establishment and maintenance of healthy fish and plants.