Features: Sponge filters provide both mechanical and biological filtration Simply install an air line into the unit and provide both aeration and filtration for your fish Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle In addition, the sponge traps larger waste particles mechanically cleaning the water without trapping baby fish They are useful for as breeding filter or as secondary filter. 聽Or they can be used as pre-filtration unit by fitting to an external or a top filter. The bio-sponge filters are designed and constructed with quality materials that will outlast any other sponge filters on the market The sponge is designed and constructed with the multilayer principle and the largest surface area possible with no clogging The sponge material is easy to clean Quiet operation The air diffusion chamber produces minute and large number of air bubbies which increase the oxygen solubility in the water They are useful for as breeding filter or as secondary filter Or they can be used as pre-filtration unit by fitting to an external or a top filt Specification: Product dimension: 9L x 4.8W x 13Hcm Sponge dimension: 4.8D x 6Hcm Notice: Please dip the filter into the water for 5 minutes before using which let the nitrifing bacterias attach easily As clean the filter fibers, don't use hot water or fresh water, the best cleaning effect will be achieved when original water of the aquarium Package included: 1 x Biochemical Filter(without retail package) 1 x Sponge 1 x Suction Cup
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