Aquarium Sponge Filter Quiet Oxygenating Biochemical Sponge Filter with Multi Layer Design for Small Freshwater Fish

[Multi Layer Principle] This kind of biochemical sponge is designed and manufactured with a multi layer principle, has a large area, and does not cause obstacles to water . [Add Oxygenation] Aquarium sponge filter can generate a lot of bubbles and increase the solubility of oxygen in the water. [Easy To Clean and Quiet] Sponge filter for fish is easy to clean, this filter has no running noise. Item Type: Fish   Sponge Filter Material: Plastic, Sponge