Lanshou goldfish has low requirements for filter materials and is a very easy fish to raise. In the process of feeding, you can choose to use a layer of filter cotton and a layer of biochemical ring, so as to ensure the filtering effect. If the water quality in the area where the breeder is located is not good, three layers of filtration can be put, and the first layer can be put with filter cotton, which can filter out the dirty things in the fish tank. Coral sand is placed on the second layer, which can adjust the water quality. The third floor is a bacteria room, which can cultivate nitrifying bacteria. If the water quality in the area where the breeder is located is better, the coral sand that regulates the water quality can be replaced by ceramic rings or ten in one.

It is best to use tap water because tap water is easy to obtain and will not pollute. However, most tap water has a large amount of chlorine gas, and breeders need to expose them to the sun for 2-3 days before using it.

In addition to tap water, breeders can also choose well water, river water, lake water, etc. When using well water, they also need to dry for a period of time. Because the water temperature of well water is relatively low, it is easy for Lanshou to have stress reaction if it is replaced directly.

Strengthen filtration when using river and lake water. Because river water and lake water are easily polluted, if used directly, it is easy to endanger the health of fish, so breeders need to filter out harmful substances in water before using them.