CNZ Aquarium Ceramic Rings, 500g Filter Media, (Total 1500g), 3 Piece
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<b>[Product Information]</b><br>
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<li>Suitable for both freshwater and saltwater filters</li>
<li>Aids in the breakdown and removal of harmful ammonia and nitrite</li>
<li>Made of long lasting, highly porous ceramic material</li>
<li>Improved shape increases internal and external surface area for beneficial bacteria to thrive</li>
<li>Biological filtration media that promotes beneficial bacteria growth</li>
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