Oceanic Bio Cube Original Replacement Filter Cartridges

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The Coralife BioCube Filter Cartridge includes 2 replacement cartridges that fit the BioCube 8, 14, 29, and HQI. These cartridges help keep your aquarium water crystal clear and re moves discoloration and nasty odors! Keeps water crystal clear Removes odors and discoloration Easy to remove and change once a month It is recommended that cartridges be changed every 4 to 6 weeks.Note: Formerly called Oceanic BioCube Original Replacement Filter Cartridges, Model #82105. Show more