General description The 2pcs Filter Net Protector Sponge Filter is designed to enhance the filtration system of your aquarium while ensuring the safety of shrimp and small fish. Its multi-layered filter cotton effectively prevents aquatic life from being sucked into the filter, while also minimizing the risk of clogging from larger debris. This high-quality sponge filter not only purifies water but also increases the oxygen content in your aquarium, promoting a healthier environment for your aquatic pets. Technical specifications Material: High-quality sponge Function: Multi-layer filtration Usage Suitable for aquariums Protects shrimp and small fish Purifies water quality Increases oxygen content in the aquarium