How long will it take koi fish to grow up?

Koi fish will be an adult in about 2 years, and then his body will grow up gradually, and his body length can reach 1- 1.5 meters.

Koi fish, the original species is carp. Red carp, as an ornamental fish, was very popular in Ming Dynasty. It is said that koi fish originated in koi fish, Longzhou, Guangxi, Xingguo, Jiangxi and Hangzhou, Zhejiang.

It was introduced to Japan in the early stage, and after long-term artificial breeding by the Japanese, there are now more than 100 varieties. According to the literature, koi fish was first seen by Japanese nobles in a pond, which is rare for civilians. Originally called Fei carp, color carp and flower carp, it was renamed koi fish after World War II.

Extended data;

Four seasons management in koi fish.

1, Spring: The weather is getting warmer and koi fish will recover from hibernation. At this time, it is necessary to move from indoor to outdoor for breeding, but be careful of the sudden drop in temperature. When the temperature drops, it needs to be covered with 1 transparent film to keep the water temperature. When feeding, feed with plant bait first, and then slowly add some other bait.

2. Summer: The weather is hot, so it is necessary to cover 1 layer sunshade net to prevent the water temperature from being too high and koi fish from dying from heat. The most suitable illumination is 5500lux-5800lux.

3. Autumn: This period is most suitable for the growth of koi fish. So, feed them some high-protein bait to speed up their growth.

4. Winter: When the temperature drops to 0 degrees, koi fish should be moved to the indoor pool, and the temperature of the pool water should be kept at 2 degrees-10 degrees, so that they can spend the winter safely. During this period, attention should be paid to heat preservation and proper feeding.

Reference source; Baidu Encyclopedia-koi fish