Theoretically speaking, the average crane-top red goldfish can grow to about fifteen centimeters. How much it can grow is limited by many factors, such as its own genes, and the environment in which it is raised. During the feeding process, it is necessary to give it more live food such as earthworms to increase its nutrition. The water in the fish tank should also be replaced frequently, about one third of each time. The breeding density should not be too large, otherwise it will lead to insufficient oxygen and fighting. Do these things well and they can grow quickly and grow bigger.

The crane-top red goldfish originated from China's auspicious bird - the red-crowned crane, the red-crowned crane not only It is beautiful, and it is an auspicious bird that symbolizes longevity. In view of this, people have very strict requirements on the red goldfish. The red sarcoma on the top of its head should be square and thick, and it can only grow on the top of the head, not extending to the cheeks. There are red circles around the eyes, the body is short and broad, silver-white, and has no red spots, and has a broad tail fin, which is the same length as the body, and is very graceful when swimming. In addition to the beauty of Hedinghong, people also have the meaning of good luck in people's minds.