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Fish tank filter in the ceramic ring on the upper or lower part of the filter cotton bag ceramic ring? There are many types of fish tank filters,There are upper filter, side filter, back filter, bottom filter, lower filter, bucket filter, internal filter, etc,Different kinds of filters,The upper and lower relationship of filter material placement may be different.In principle, water is first filtered through physical filter materials such as cotton,Then through the biological filter material such as porcelain ring.Ceramic ring,Get the best water quality by Best biological purification of fresh water and sea water,It is a kind of enhanced filtration material with pure biological properties.Can be used in all biological filters,External filter,A drop purification filtration system and a garden pond filter.As an efficient and durable filter material, it is also particularly suitable for small biological filters,Biological filter cotton can be used as a front filter material to avoid pollution cause
How is the water that comes out of the front filter useless overnight? It is normal that the accuracy of the pre-filter is generally only 40-100 microns, but the product that filters the pretreatment of water with large impurities cannot clear the water, too thin and too small particles will still flow out, but it is not to say that the pre-filter is installed. it is not used at all. it is a branch of the water purifier and has its own features, the large amount of water is due to the use of stainless steel mesh to stop impurities, which can be reused. after the cost of not using is generally added to the water meter, the product before the water purifier in front of the water heater