MECO 15pcs Honeycomb Bio Balls 56mm for Aquarium Fish Tank Pond Filter Media in Bag

Introduction:
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.
With the new design of bio-sponge inside, the biological loads are maximized within much smaller filter areas.
The bio-sponge inside provide more surface area for growth of beneficial Bio-Spira bacteria.

Package Included:
One bag of aquarium bio balls