1. Look at its body shape: To identify koi fish, we must first look at its body shape. In addition to the overall symmetry and fullness, we also need to look at some details. For example, the distance between eyes, whether it is wide enough, whether the distance between eyes and mouth is too short, and whether kisses are thick enough can determine whether they look good when they grow up.

2, look at body color: Besides looking at the size of koi, we should also look at its color. There are many colors, and there is no distinction between high and low colors, but whether the colors are pure or thick affects its aesthetic feeling. If the color is impure, there are variegated colors, and the color quality is very shallow, the ornamental value will be poor.

3. Look at the pattern: Koi with good color may not have good pattern. Look at its pattern, first of all, whether the whole is symmetrical. If it is only found in one place, it will not look beautiful. In addition to the whole, but also look at the characteristics, if there is a pattern on the shoulder, it is best to break, and the pattern on the tail handle is best to have a ending, and at the same time it can extend to the abdomen.

4, look at the swimming style: A good koi fish not only looks good, but also has a beautiful swimming style. If the body is crooked when swimming, even the best pattern color is white and blind. See if its pectoral fins are strong, whether its tail handle swings moderately, and if its movements are too big, it will appear uncoordinated.

If koi is raised in jar, it is best to choose monochromatic carp, dragon and phoenix carp, or heavy ink Showa, which all look beautiful.