1, health: Koi selection, to consider whether the health of Koi. A healthy koi will be very flexible when swimming, will be very active when eating, and the body of a healthy body will be well proportioned. Koi that meet the above conditions should be the first choice when choosing.
2. Body color: The body color of a healthy koi will be very bright. The white koi will be clean white, and the crimson koi is as bright red as blood. In order to make profits, many businessmen in the market will feed the bad color koi with pigmented fish food, which is unhealthy. Therefore, when choosing Koi, we should choose the Koi with bright color and obvious demarcation line, not the Koi with vague demarcation line.
3. Pattern: Different varieties of koi have different patterns. For example, the pattern of scarlet koi will not exceed the nose and not lower than the eyes. So it is not recommended to buy. When purchasing, we should choose Koi with clear patterns and meet the characteristics of varieties.
The breeding methods of big koi and small koi are not very different, except for size, other places are not particularly different. According to the size of the breeding environment and the expected number of Koi, the breeder can choose to buy large or small Koi.
1. Temperature: Keep the temperature between 20 and 26 degrees.
2. Illumination: Ensure about four hours of illumination every day.
3. Feeding: It is necessary to feed once a day. Do not feed too much to avoid overeating;
4. Water change: In general, the water needs to be changed once a week. If the koi is in a sick state, the water needs to be changed two to three times a week.
