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2837/2838 Biochemical Cotton FilterFeature:-100% new and high quality.-The use of environmentally friendly high-level sponge as a filter, the use of the air pump (to be purchased separately) outlet access to the goods can be air intakes.-To ensure efficient nitrifying bactea culture, to achieve clean and good water quality stability, effective oxygen and water quality filtration.-Ultra-fine filter holes can effectively filter harmful bacter and suspended solids, keep the water clean and thorough.-Increase oxygen, fully dissolved oxygen pump into the fish tank to improve fish survival.Description:Material: spongeProduct category: Filter cotton / filterWeight: 0.3kgsize:2838: 15*20*15cm2837: 15 * 19 * 15cm Working Principle:-Biochemical cotton filter to air pump as the source, improve water dissolved oxygen and baceria, combined with mechanical filtration, filtration principle and the use of multi-level filtration culture of high-density nitrifying bacteia group, to clean and good water quality stability, suitable for all kinds of Ornamental fish breeding, breeding, young fish to develop, especially for the Discus fish, small fish, fry effect is remarkable.Pack Include:1X Filter cotton
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