Product Review

Special Features:
Used as the biological media in the filters, such as aquarium, fish tank and pond filter media.

Great for fish tanks, to promote gas exchange and increase dissolved oxygen levels.

Great for tropical fish farms, koi ponds, waste water systems, etc.

Aiding in the critical gas-exchange process that is needed for successful biological filtration.

Specifications:
Color: Black
Dimensions: Diameter of bio ball: 16mm (included biological sponge)
Package:100pcs*Aquarium Biological Balls