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Aquatic Experts Bio Balls Filter Media - 1.5 Inch Large Bio Ball for Pond Filter - Perfect Bio Balls for Pond Filter Media – Made in The USA (300 Count with Mesh Bag) : Amazon.co.uk: Garden
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Aquatic Experts Bio Balls Filter Media - 1.5 Inch Large Bio Ball for Pond Filter - Perfect Bio Balls for Pond Filter Media – Made in The USA (300 Count with Mesh
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Do pond filters need a sponge? This one came with only bio balls. It seems odd to skip the sponge. Not sure if I can add one in or is it not
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Wholesale Sewage Treatment System Filter Media Bio Balls for Pond - China Plastic Float Bio Ball, Mbbr Biofilm Carriers | Made-in-China.com
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WZYTEU 100 pcs Bio Balls, 26mm Biological Filter Media Water Filter Material with Cotton for Aquarium Fish Tank Pond (Black, Give away 2 Filter bags) : Amazon.co.uk: Pet Supplies
![Aquatic Experts Bio Balls Filter Media - 1.5 Inch Large Bio Ball for Pond Filter - Perfect Bio Balls for Pond Filter Media – Made in The USA (300 Count with Mesh Aquatic Experts Bio Balls Filter Media - 1.5 Inch Large Bio Ball for Pond Filter - Perfect Bio Balls for Pond Filter Media – Made in The USA (300 Count with Mesh](https://m.media-amazon.com/images/I/9105Fq84KEL._AC_UF350,350_QL80_.jpg)