Effective Biological Filtration with Sponge Filters
Porous Cotton Material combines mechanical and biochemical filtering effects that effectively capture debris and maintain water quality, as well as provides a large surface area for cultivating beneficial stuff
The Weighted Base: Make the vertical filter easily sink to the tank bottom and keep in place. Please put the foam into the water tank and squeeze out the air until it is full of water when first used
Easy Use and Maintenance: The package comes with two sponges, and squeezed together with the filter; just remove one to restore the shape. No need to disassemble to rinse and wash the sponge with tank water
Be Aware: it does not come with airline tubing and air pump. You need an extra air pump to power the sponge filter
M-Dimension: 2.9"D X 5.3"H, Fit for 30 -75 gallon aquarium, as a pre-filter or auxiliary filter for large tanks
