Features: The USB Aquarium Filter combines efficient mechanical filtration with oxygenation, removing impurities while boosting dissolved oxygen levels for healthier marine life. Featuring a compact design, this energy saving filter ensures quiet operations and consistent water circulation in freshwater tanks. Ideal for aquarium enthusiasts and pet fish owners seeking great maintenance solution for small to middle sized tanks. Perfect for desktop aquariums, shrimp habitats, or decorative fishbowls requiring simultaneous water purification and aeration. Its plug and playing functionality with USB power compatibility makes this aquarium filter systems effortless to install at home or office environments. Specifications: Component: Plastic Color: As pictures shown. Optional Type: D763, D764 D763 Size: approx. 11.5x24cm/4.53x9.45in D764 Size: approx. 4.5x18cm/1.77x7.09in Parameters: D763 Power: 1W Flows: 200L/H Lift: 0.35M Cable length: 1.5meter Fit Fish tanks: 40-80cm D764 Power: 1W Flows: 300L/H Lift: 0.70M Cable length: 1.5meter Fit Fish tanks: 40-60cm Package Includes: 1 set Fish tanks Filter Oxygen Generator note: Please allow 1-3cm error due to manual measurement. please make sure you not mind before you bid. Due to the differences between different monitors, the picture may not reflect item's actual color.