Premium ceramic media covered with thousands of tiny holes provides much larger inner surface area, working smoothly on providing both mechanical and Biochemical filtration, Balance PH value and absorbs fish waste, providing crystal clear water for long period of time. Aquarium ceramic rings have precise structures full of holes,adhere to which are a lot of good vital bacterium such as nitro-bacterium supplied to grow accompanying aquatic livings,also with good adsorption,improved the effect of biological filter and keep water stabilized.

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