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commented on "Ceramic Bio Rings - 1.7cm 1kg"
on www.maximumaquariumsupplies.co.nz
http://www.maximumaquariumsupplies.co.nz/gallery/Filter%2BMedia/ceramic-bio-rings-17cm-1kg/502028
1kg
Bulk packaged white ceramic bio rings.
They are around 1.7cm wide and 1.7cm long.
Ceramic rings as a biological filter media can be used in aquarium filters
Enhance bacterial growth for biological filtration with these Ceramic Rings.
Designed to maximize surface area, they require no cleaning and are virtually maintenance free.
Safe for both fresh and saltwater tanks.
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