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. Bio...
  • 30pc of 42mm (1.65") Aquarium Bio-balls
  • They are used as the biological media in salt water and fresh water aquariums as well as ponds.
  • Simply Rinse and Use .Bacteria friendly Polypropylene Construction. Dense Hole Structure for Nitro-bacteria

Bio Balls 1.65" Aquarium Pond Filter BULK 30 PCS BALL


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