Features:

Biochemical sponge filter provides biological filtration to the aquarium, helps to stable water quality.

Increase the oxygen solubility in the water.

Working noiselessly, large size.

Good permeability, easy to clean.

Perfect filters accessories for your tank and aquarium.

Speicificaitons:

Product name: Aquarium Sponge Filter

Color: Show as picture

Model Number: XY180, XY280, XY380
The whole size for filter: as picture

Spong Speicificaitons:

Product name: Replace Cotton for Aquarium Sponge Filter XY-180, XY-280, XY-380

Color: Black (Show as picture)

Sponge Size: as picture

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.
3. It must be used through connecting the air pump.