Sponge filter provides both mechanical and biological filtration. Aerobic bacteria colonize the sponge, providing a bacterial substrate to facilitate the nitrogen cycle. In addition, the sponge traps larger waste particles, mechanically cleaning the water.
Can absorb dirt, quickly resolve fish feces and eliminate smell in water
Help improve water oxygen level, need to combine with an air pump
Achieve oxygenation and biofiltration double effect, keep water clean
Package include: 1 x Corner Filter (Color is random and Air pump not included), Dimension: 7.5*7.5*7.5 cm. (L*W*H)