Feature: 1. High Quality Material: Safe ABS material, sturdy and durable, long service life. 2. Closed Filter: The closed built in filter will not disturb the pet by the water flow, and it can be pumped as low as 5mm. 3. Convenient and Safe: Separate USB socket storage is convenient and safe to use. 4. One Piece Design: Built in filter cotton, one piece design for water change and filtration. 5. 360 Degree Filtration: The water inlet is close to the bottom of the tank, and the 360 degree water intake sucks dirt without dead ends. How to Use: 1. For the first use, please soak and clean this product with clean water once, or it can be used directly in the filter tank. 2. Place this product after physical filtration, and place it comfortably, do not squeeze hard plugs 3. Start the new tank, use trapped water, please make sure to sprinkle the fresh nitrifying bacteria on the product, and you can feed the fish in three days after raising the water. For daily use, if you update other filter materials, please complete the replacement two times three days apart 4. For routine maintenance, please clean the filter material once every six months to a year, half of each time, three days apart, easily rubbed in clean water or machine washed Specification: Item Type: Filter Material: ABS Available Lowest Water Level: Approx. 5mm/0.20in Power: 2W Flow Rate: 150L/H Voltage: 100-240V Package List: 1 x Filter