Key Features Genuine Oase Indoor pump Attaches easily to the side of the tank Compact and energy efficient pump Creates variable water flows and streams for additional benefits for fish and water Suitable for Fresh or Marine Tanks Oase StreamMax Aquarium pumps are a versatile and reliable stream pump. Water circulation in any aquarium or fish tank is important. Keeping a steady flow of water movement in a tank provides benefits to the fish and life inside. As the water is circulated by the pumps action, it improves the oxygen levels, disperses healthy nutrients and eliminates “dead-spots” in the tank. The movement of the water also mimics natural waves, something the fish enjoy and thrive on. The motion gives the fish a chance to be active as they swim against the current, helping to increase their exercise levels. The Oase StreamMax Classic pumps are extremely powerful but quiet running pumps. Each pump has a variable water flow adjuster to help concentrate the water flow to