The survival time of Mary fish is relatively short, and their life span is generally between 2 and 3 years. Therefore, the fish can not be used to grow for a long time. If the environmental conditions are suitable, it can grow to 5 to 8 centimeters in about three months, almost close to the length of adult fish. Although its body length is about the same as that of adult fish, the internal structure of its body will take some time to perfect. Generally speaking, it takes about 4 to 5 months for Mary fish to mature from birth. If the environment of the fish is relatively bad, its growth period will be extended. The slowest growing Mary fish may take six months to grow, but most fish do not take more than six months to develop.
The time for Mary fish to acquire reproductive capacity is closely related to the environment and feeding conditions. If it lives in the most suitable environment for its growth and eats nutritious food, it will enter the breeding period ahead of time. Generally speaking, the sexual organs of Mary fish begin to develop at the age of 4 months, and it takes about 1 to 2 times for them to mature. The early development of fish began to develop at the age of 3 months, and about 4 months old, they can mate with other fish. Ordinary fish can only acquire reproductive capacity when they are 5 to 6 months old.
