Clarify your water naturally and cultivate beneficial bacteria with these Polypropylene Bio-balls.
They promote gas exchange and increase dissolved oxygen levels, then filter the water as the bio-balls combine with organic waste to dissolve it.
For use in fresh & saltwater aquarium. Great for nano tanks.
The bio-sponge inside provide more surface area for growth of beneficial Bio-Spira bacteria.
BIO-Balls do not require replacement unless damaged or destroyed.
Diameter of bio ball: approx 1 inch(2.5cm)
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