AQUACITY Premier Bulk Bio Ceramic Rings Filter Media for Aquarium Koi Fish Pond Reef Filter
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<b>[Product Information]</b><br>
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<li>The ceramic material that these bio rings are made of is extremely porous</li>
<li>Good to use for both fresh and saltwater aquariums</li>
<li>Toxic ammonia and nitrates remover</li>
<li>Ceramic ring size: 1/2"x 1/2"</li>
<li>In bulk packaging</li>
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