Features: 1. Triple filtration functions, namely, mechanical, chemical and biological functions. 2. Natural water circulation, enhancing dissolved air and oxygen content in the water. 3. Large amount of water circulation, having excellent filtering effect. 4. Suitable for being in fresh water as well as seawater. 5. Three placement methods: 1. hanging on the fish tank with the hook. 2. fixing on the fish tank wall with the suckers. 3. and you can also simply put it on the fish tank bottom. 6. Lowest water level, about 4cm; suitable water volume, below 15L. 7. Suitable for tanks of fishes, turtles and other amphibians. 8. According to different breeds and different densities, can add extra filtering materials. 9. lighter and handier than other same type filters, thus more suitable for smaller aquariums. Specification: Condition: Item Type: Aquarium Filter Voltage: 220-240V Frequency:  50Hz Power: 3W Max Rate: 100L/H Capacity: 12L Package Weight: 305g Size: Approx. 7.3*5.3*16.3cm / 2.9*2.1*6.4inch Package Included: 1 x Aquarium Filter Notes: 1. Read the product manual before using. 2. Supply the water at a regular basis; make sure the water level is above the lowest water level, about 4cm. 3. Cut off the power supply first before you start to adjust, maintain and clear the filter. 4. If you will be out for more than 3 days, cut off the power supply. 5. Do not run the filter in an empty fish tank. 6. Dear customer, please rest assured to buy without worrying about the plug adaption. We will provide an adapter for you according to different country standard to ensure its normal use. mechanical, namely, enhancing dissolved air and oxygen content in the water Large amount of water circulation