Fluval Biological Cleaner for Aquariums, 8.4-Ounce

Fluval Flex Foam Filter Block, Replacement Aquarium Filter Media, A1375

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Replacement black foam to insert in your Fluval flex 15G. This foam is for the Fluval flex aquariums.

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Replacement black foam to insert in your Fluval flex 15G. This foam is for the Fluval flex aquariums.

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Fluval Biological Cleaner for Aquariums, 8.4-Ounce