TetraAqua EasyBalance Keeps aquarium water and fish healthy, without the need for frequent water changes • refreshes aquarium water without the need for frequent, stressful water changes • replicates the action of a water change, and adds additional elements not present in tap water • promotes the health and condition of fish and plants • helps to control algae • actively reduces nitrate and phosphate levels • stabilises pH and KH levels • adds valuable vitamins and trace elements to the water • reduces the need for water changes to a minimum of once every 3 to 6 months • for all freshwater aquaria