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Feature

Free media bag for easy handling
BIO-Balls do not require replacement unless damaged or destroyed
bio-sponge inside provide more surface area for growth of beneficial Bio-Spira bacteria
In the event of excessive buildup, you may gently rinse with water from an established aquarium, if desired
Diameter of bio ball: 26mm (1inch)

Description

Used as the biological media in the filters, such as aquarium, fish tank and pond filter media. These plastic bio balls have lots of surface area for filtering the growth of bacteria, can promote gas exchange, increases dissolved oxygen level and removes harmful gases.