The mini filter aquarium is small and suitable for small fish tanks, such as spherical fish tanks, special-shaped fish tanks and other family small fish tanks. It can effectively filter andoxygen supply. Features: Mini filter: It is small and suitable for small fish tanks, such as spherical fish tanks, special-shaped fish tanks and other family small fish tanks. It has three functions: filtration, water circulation and oxygen supply. Filtering function: Small volume but large function, this mini filter can effectively filter. How to use: Work completely submerged in water. Suction cup design: Strong suction force, it can be installed anywhere on the fish tank. Do not use an oversized air pump to avoid uneven mixing of water and air. Easy cleaning and maintenance; Low loss and high efficiency; Super quiet; long service life. Easy to care: Clean the sponge once a month and change it every 5 to 6 months. Specifications: Product name: 3-in-1 Mini Filter Material: Plastic Voltage: AC220-240V Power(optional): 3W/5W 3W Mini Filter Aquarium Head: 0.5m Traffic: 300L/H Package weight: 140g Package size: 8.5*5.5*13.5cm 5W Mini Filter Aquarium Head: 0.75m Traffic: 600L/H Package weight: 180g Package size: 8.5*5.5*16.5cm Package List: 1*Mini Filter