Zhhml Aquarium Fitler Media Aquarium Bio Balls Filter Media Cultivate Nitrifying Bacteria Freshwater/Seawater Biological Filtration (20Pcs) (Rectangle)

Function: Bacteria can be highly efficient with filters. Pore structure can be an excellent breeding bed for nitrifying bacteria and excellent water This product can be used with a variety of filters put it in the right position on the filter very suitable for small aquariums large aquariums carp ponds and all kinds of fish ZHHMl aquarium filter media is suitable for freshwater and seawater tanks. PH neutral. It will be a great help to restore the natural water quality and provide the best living environment for your fish. Increases the ability to transport hydrogen molecules and increases the oxygen content in water. Strong filterability. Can be used repeatedly after cleaning. And its strong filterability can stabilize the water quality and reduce the number of dead fish. It can decompose ammonia ammonium nitrite hydrogen sulfide and other heavy metal substances. [Our Guarantee] Due to quality issues we guarantee 100% refund and 30 days free warranty. You can buy with confidence.