There are three filter system: filter cotton, quartz sand, activated carbon. Specifications: Material: Acrylic Plastic Fit for: 10-60 cm. Fish Tank, Size: Approx. 7.5*7.5*7.5 cm. (L*W*H) Net weight: 156 g, Color: White, Green, Blue, Pink (Random)
- 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)