The life span of Lanshou goldfish can reach about 6-10 years, but how long they can live depends on the way of breeding and the living environment. If breeders can ensure that their living environment is stable and food is sufficient, their life span can generally reach 6-7 years. If properly raised, they can live for more than 10 years. However, if they are often sick or weak, their life span will also be affected, generally no more than 5 years.

If the breeder wants to make the Lanshou goldfish live longer, the breeder needs to feed them more nutritious food. Only in this way can they live in a more comfortable environment. In addition, breeders should regularly check their bodies and sterilize them regularly to prevent them from getting sick.

The body length of Lanshou goldfish in adulthood is generally about 20 cm, but how big they can grow depends on the way they are raised. When cultured artificially, if there is not enough space, their body shape will also be affected. If breeders want to make Lanshou goldfish bigger, they should ensure their living space and sufficient food at ordinary times, especially at the critical stage of their growth and development. If they can't be guaranteed adequate nutrition, not only the body shape of Lanshou goldfish will be affected, but also their head tumor will be affected.