To raise Lanshou goldfish, you can be oxygenated or not, because their demand for oxygen is not very high, so whether to be oxygenated depends on the density and water quality of the fish. If the fish tank is small but there are many fish tanks, the breeder needs to give them oxygen. Because of the high feeding density, fish will have more demand for oxygen, which is difficult to meet only by dissolved oxygen in water, so it is best to use oxygen. If there is plenty of space in the fish tank, there are fewer fish, and a circulating filtration system is installed, the breeder can avoid oxygen. Because the water body is large, there is more dissolved oxygen in the water, but there are not many fish, so the dissolved oxygen in the water is enough for them to absorb.

It is not necessary to install a filtration system for raising Lanshou. They do not pollute the water quality seriously. As long as you change water frequently at ordinary times, you can ensure the clean water quality. If other fish are mixed or the breeding density is too high, it is necessary to install a filtration system, which can slow down the deterioration of water quality and avoid problems such as bacteria in fish tanks. If the feeding space is sufficient, it is recommended to install a filtration system, which can reduce the frequency of water change, keep the water quality stable, and effectively clean up fish feces and food residues.