[Multiple filter function]: The sponge filter combines a 7-stage ribbed sponge with a unique scientific design, can quickly set up biological filters, improve the quality of cleaning water, and carrying oxygen can make 360-degree rotation without dead angles to Keeping your crystal clear Home Aquarium [Special Ceramic Filter Material]: The aquarium sponge filter is compatible with the ceramic bio-filter tank, which helps eliminate pollutants and increase oxygen levels in the water tank, you can replace the filtering to improve the quality of water and [squeegee sponge]: You can easily remove the sponge from the filter for cleaning or replacement. The sponge filters can also be mechanically filtered or biofiltered, which can capture floating debris and prevent baby from being sucked into the [easy to install filter]: use air hoses to connect one end to your pump. The other end is connected to the filter. The sponge filter is adjustable, so you can change the direction and height of the
