Arowana can grow about 15-30 cm in a year, but how big they can grow in a year is affected by the growth environment and growth stage. Under the condition of normal feeding, the growth rate of Arowana in the first year of birth is relatively fast, and it can increase by about 20-30 cm a year. But when they are 2-3 years old, their growth rate will gradually slow down, and they can only grow by 10-15 cm a year.

In addition to the stage of growth, the living environment also affects the speed of their growth. If the breeding environment is comfortable and there is plenty of space and food, then they will grow faster. If they live in insufficient space and the environment is unstable, their growth speed will be greatly affected. Breeders should make arowana grow faster first, and ensure that they have sufficient food, nutrition and space, and keep the environment stable.

The life span of Arowana is generally about 6-30 years, and the difference in their life span is due to the influence of environment. Under normal circumstances, arowana grown in the wild has a longer life span, which can live for about 20-30 years. Because the wild environment is more suitable for the growth of arowana, and there is more space, so their life span is longer.

The life span of arrowana cultured in captivity is generally 6-7 years, because they have poor adaptability to the environment and the space for artificially cultured is not too sufficient, so their life span will be shorter. Even if breeders can keep the environment stable and have plenty of space, they can only live for about 10 years at most.