The Tetra Aqua Easy Balance is perfect for refreshing aquarium water, promoting the health and condition of fish and plants, and reducing the need to change the water so frequently. Easy Balance helps to control algae and replicates the action of a water change but adds valuable vitamins and trace elements that are not present in tap water. It also actively reduces nitrate and phosphate levels and stabilises pH and KH levels. In addition, the need to change the aquarium water is reduced to a minimum of once every 3 to 6 months.