[High Quality] Our aquarium filter cotton is made of high quality sponge, with good filtering effect. The biochemical cotton filter removes dirt, stabilizes water quality and cultivates bacteria useful to high quality animals. Length 8cm * Height 16cm * Thickness 6.3cm [Protect shrimp and fish] Filter cotton is filtered through multiple layers to completely prevent shrimp and fish from being inhaled.< /p> [Prevent clogging] It can prevent large foreign objects from being sucked into the filter system and clogging. [Usage] Suitable for aquariums, protect shrimp and small fish and purifies the water quality. [Increase the oxygen content of the aquarium] Harmful substances are broken down by the nitrifying bacteria on the sponge and converted into harmless substances for fish and returned to the aquarium. It is suitable for keeping and observing all kinds of fish. Delivery quantity: 1 piece Welcome to meet ..
