Aquarium Biochemical SPONGE FILTER - FISH TANK 30gal
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<b>[Product Information]</b><br>
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<li>Up to 30 gallons OPERATION / DURABLE EASY / ENERGY SAVING</li>
<li>Advise: Replace the bio-sponge three month, to ensure the filtrating effect as well as the growth of the nitrifying bacteria.</li>
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