Bio Balls x 40

Filter Media for Aquariums and ponds.

Features

This product adopts the design of multi-face and cascade, it ensures equal water
running with a long flow which provides the largest surface for the nitro-bacteria
and a large volume for oxygen.
The material of the product is best for the nitro-bacteria cultivation.
Can keep the PH at neutral for a long time, increases the nitro-bacteria density
and improve the water effectively. Can absorb and dissolve ions which can
poison the fish.
Diameter: 1 inch