can Koi grow? Koi can grow to 1-1.5 meters. It belongs to large fish and grows faster. It can grow about 10-20 centimeters a year. The newly hatched fish is 1 cm long. After 40 days, the koi can grow to 2 cm. After 60 days, it can grow to 3 cm. After 80 days, it grows fastest, it can grow to 8 cm. In a year, it can grow to 10-20 cm.
After each instar, they will grow at a rate of 10-20 centimeters. It is important to note that koi are sexually mature at 2-3 years of age. The growth of sexually mature Koi will not stop, but will continue to grow, but the growth rate will slow down. Even after the age of 10, it may continue to grow.
1, water temperature: Do not ignore the water temperature because it is a cold-water fish, adapting to a wide range of water temperature. In order to make the koi grow up, the water temperature must be stable at 20-25 C. In winter and spring, when the temperature is low, the heating rod should be turned on in time to increase the temperature.
2, water quality: Good water quality, koi will not get sick, grow faster, grow bigger. Therefore, it must be provided with a good water quality environment in daily life. It's better to change the water once every 3-5 days, and change one third of the water every time, so as not to destroy the stability of the system in the fish tank.
3. Food: You can feed coarse grains, such as soybean milk and soybean cake. It can feed small fish, shrimp and lean meat. It can also feed apples, cabbage and other vegetables. In this way, Koi carp are rich in nutrition, so that they can grow bigger.
