Aqueon Bio-Balls are compact in size and are geometrically designed to provide a large surface area for beneficial bacteria to grow. Space-saving, one inch round balls can be used with different types of filters for both freshwater and saltwater aquariums. Simply place Bio-Balls in the media basket or chamber. The number of pieces needed will vary by your individual filter's requirements and capacity. 60 ct.
- Biological filtration for both freshwater and saltwater use
- Geometric surface area ideal for beneficial bacteria growth
- For use with different types of filters – canisters and wet/dry