If the feeding density is normal, Lanshou goldfish can not turn on oxygen at night. Because their demand for oxygen is not very high, under normal feeding density, they only need to be oxygenated for a few hours during the day, which can ensure their sufficient oxygen for one day. In addition, turning on oxygen at night will affect their rest, and their mental state will deteriorate over time, so it is best for breeders not to turn on oxygen at night. However, when the feeding density is high, oxygen should be turned on at night. Because of the high density, the dissolved oxygen in the water will be insufficient. If you don't get oxygen all night, the fish will probably die of lack of oxygen.

Lanshou goldfish raised indoors with heating can not be heated. Because they are cold water fish, they can adapt to lower water temperature. In heated rooms, the temperature is mostly around 20 ℃, so they will not be affected at all.

If it is an indoor without heating, it is also necessary not to install heating rods, but Lanshou goldfish will stop growing in a low temperature environment. If breeders want them to develop normally, it is recommended to install heating rods.

If raised outdoors, heating rods must be installed. Because it is cold outdoors in winter, and there will be icing near the north, if the breeder does not take heating measures, the blue longevity fish will probably freeze to death.