Environmental factors will largely determine how big the fish can grow. In addition, feeding conditions can also affect the growth of fish. When they grow in the wild, the water is their favorite environment, which will promote their growth to a certain extent. In addition, there is a relatively large space for activities, and the fish swim for a long time. Therefore, the length of silver arowana growing in the wild can reach 120 to 130 centimeters. But the fish which raises artificially, can only confine in the fish bowl, its growth vigor certainly is inferior to the wild growth fish. Even if properly raised, it can only grow up to 90 centimeters, and few fish are more than 100 centimeters long. If the size of the tank is too small, the fish usually swim less, it may not even grow to 80 centimeters.
Fish can mate and reproduce only after their sexual function matures. Different fish have slightly different times of sexual maturity. The growth rate of silver arowana is very fast, but its growth period and development period are longer. Normally speaking, after the length of the fish reaches 50 to 60 centimeters, its sexual function is basically mature. However, some fish can not mate even if they grow to more than 50 centimeters because of their slow development. Generally speaking, fish over 60 centimeters in length can reproduce.
