Elevate your aquarium experience with this innovative waterfall filter system that combines form and function. The sophisticated 3-layer filtration system utilizes pure ecological cotton, premium white cotton, and activated carbon sponge to effectively remove impurities, fish waste, and unwanted odors from your tank water. The elegant waterfall design not only creates a soothing cascade effect but also promotes healthy oxygen levels through continuous water circulation. Operating on a whisper-quiet USB-powered motor (5V/2.5W), this compact filter won't disturb your aquatic environment. The adjustable flow rate lets you customize filtration intensity to match your tank's requirements. Maintenance is straightforward - simply clean the filter media weekly or when debris accumulates. Perfect for small aquariums, this hang-on-back filter measures just 6.0 x 2.5 x 4.0 inches and installs with ease. Remember to add water before operation and fill the filter directly during initial setup for optimal performance. The package includes the filter unit, activated carbon sponge, multiple layers of filter cotton, and a USB power cable.