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Keep your tank fresh and clean
No hassle device
Suitable for tropical, Coldwater and marine tanks
Keep your fish tank clean and fresh for your fish with the Bio Rings from Fish R Fun. This bag is a simple way to keep your filtration system topped up, keeping your tank cleaner for longer. These bio rings are perfect for biological filtration and they are ideal for bacteria growth that helps steady the quality of the water. These rings are suitable for use with tropical, Coldwater and marine tanks.