|Bio-Balls Biological Media – 200 Count by Complete Aquatics|
Bio-Balls are compact, lightweight and long lasting media for biological filters. The high surface area shape of the balls promotes beneficial bacteria colonization. Bio-Balls maintain their porosity after multiple seasons of use and are a snap to maintain when it comes time to clean. 200 Bio-Balls will treat approximately 400 gallons with a normal fish and bio-load. 25 square inches of surface area per ball.
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