Super Thin 120x30x0.5cm Aquarium Filter Super Biochemical Filter Cotton Sponge for Aquarium Fish Tank Bio Cotton Foam Skimmer

120x30x0.5cm Super Thin Biochemical Filter Cotton Sponge for Aquarium Fish Tank Biochemical Cotton Sponge White Features: Biochemical sponge filter provides biological filtration to the aquarium, helps to stable water quality. Increase the oxygen solubility. Working noiselessly. Good permeability, easy to clean. Perfect filters sponge accessories for your tank and aquarium. Speicificaitons: Product name: Aquarium Sponge Filter Color: White Sponge Size: 120cmx30cmx0.5cm Reminder: 1. Soak the sponge in the aquarium water for 5 minutes before use, by doing this will help nitrifying bateria colonise easier. 2. Always use aquarium water under room temperature to rinse clean the sponge, never use hot water. Including: 1pcs Aquarium Biochemical Sponge