What device does the fish tank have to change water? There is no water change device,But you can install the filter system (necessary) to reduce the frequency of your water change,The filtration system has two aspects of attention to flow and volume,The flow needs a fish tank suitable for you,The larger the volume, the better,There are many filter materials with large volume,Biochemical filtration is strong,Good water quality.The current filtration is generally filter cartridge, upper filter, bottom filter, back filter, side filter, internal filter,Each has advantages and disadvantages,It is best to choose the right way to filter.I recommend you to go to the forum where you raise fish first to learn,Many FISH3000, SONIC2000, CTA South American aquarium .Water is not rotten.
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What kind of material are the dust bag? The dust bag can be called the heart of the bag filter,Therefore, the choice of dust bag is particularly important.It will directly affect the dust removal effect of the dust collector.Generally speaking, the choice of dust removal bag (dust removal filter bag) is considered from the following directions: humidity, temperature and chemical properties of the gas,The particle size of the dust in the gas,Dust concentration of gas,The choice of dust cleaning methods and other aspects.By comparing these aspects, we finally choose the suitable dust bag.1.Normal temperature type bag: breathable layer, DV air filter material, polyester needle felt filter bag, 729 polyester woven filter bag, anti-static polyester needle felt filter bag, polypropylene needle felt filter bag, easy to clear gray polyester needle felt filter bag, 208 polyester woven filter bag, polyester coated needle felt filter bag, water resistant and oil resistant polyester needle felt filter bag.2.High tem
