2-Piece Mesh Filter Protection, Sponge Filter, Aquarium Air Filter, Biochemical Sponge Filter for Aquarium, Fish Tank

【Protect Shrimp and Fish】 The filter cotton is filtered through multiple layers, completely preventing shrimp and fish from being sucked in.

【Prevents Clogging】 It can prevent large foreign objects from being sucked into the filtration system and becoming blocked.

【Uses】 Suitable for aquariums, to protect shrimp and small fish and to improve water quality.

【High Quality】 Our aquarium filter cotton is made of high-quality sponge with a good filtration effect.

【Increase Aquarium Oxygen Content】 The principle of biological filtration uses multi-layer filtration to cultivate nitrifying bacteria at high density to increase the oxygen content of clean water.