VAYINATO Petzlifeworld Nano Home Ceramic Rings Filter Media, 500G With Net Bag Fluidized Aquarium Filter(Biological Filtration for Salt Water and Fresh Water)
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A BETTER WAY TO KEEP YOUR FISH HEALTHYHeat processed quality ceramic rings. The special quality ceramic rings contains millions of tiny micro- scopic pores to house bacterial colonies. The beneficial bacterial colonies purify water and bio-degrade feed waste and fish excrete in to non- toxic nitrogen molecules
