for several years. Normally, the arowana stops growing in 4-5 years, but the specific time depends on whether the feeding space is sufficient. If there is not enough room for them, they will stop growing when they grow to a certain length. In their first year of life, arowana grow at the fastest rate. They can grow to 20 centimeters in only 4-6 months. But it takes a year for them to grow to 40 centimeters. When the arowana grows to 45 centimeters, the growth rate will slow down. They are born about 4 years, the growth rate will be very slow, generally 5 years after birth, will stop growing.
1. Proper exercise: In order to make arowana grow bigger, breeders need to let them exercise more, so as to improve their metabolism and make them develop faster. If conditions permit, wave-making pumps can be installed to allow arowana to move regularly.
2. Sufficient space: The size of arowana is large, and the breeder needs to give them enough space to make their size bigger. Generally speaking, the best size of the fish tank is 3-4 times the size of the fish, but the size of the arowana is large, and the breeder can use a 150 cm long, 80 cm wide and 70 cm high tank to raise the arowana.
3. Reasonable feeding: In order to make arowana grow bigger, it is necessary to ensure that their food and nutrition are adequate. In childhood, we can feed more small fish, shrimps, red worms, mealworms, barley worms, lean meat, animal viscera, etc., which can promote their growth and development. After adulthood, the feeding amount of animal feed can be reduced and the feeding amount of synthetic feed can be increased.