4CM Super Thick Encryption Aquarium Filter Biochemical Cotton Sponge for Aquarium Fish Tank Bio Cotton Foam Skimmer High quality

4CM Super Thick Encryption Aquarium Filter Biochemical Cotton Sponge for Aquarium Fish Tank Bio Cotton Foam Skimmer
Features:
Encrypt and thicken
Thicker than regular cotton. The filtering effect is more efficient.
No fluorescent agents, no glue, safe and non-toxic, no harm to fish
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
Color: White
Sponge Size:100cmx12cmx4cm,150cmx12cmx4cm,200cmx12cmx4cm,150cmx15cmx4cm,150cmx30cmx4cm,100cmx50cmx4cm
Thickness:4cm
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.Due to transportation volume limitations, we will compress and vacuum package the cotton. After receiving the goods, the thickness of the cotton will be reduced. Please do not worry, it can be restored to normal after being left for a period of time.please kindly know。
Including:
1pcs Aquarium Biochemical Sponge