Generally speaking, the life span of a parrot fish is about 4-5 years. Because they are artificial hybrids, their life span will be shorter than that of other medium-sized fish. However, there are many varieties of parrot fish, such as macaw fish and mammon parrot fish, which have a longer life span, which can reach about 8 years.

Parrot fish have different lifespans in different growing environments. If they grow in comfortable environments and they rarely get sick, it is no problem to live to about 4 years. If they live in a poor environment or if parrot fish have poor physique, their life span is generally 2-3 years. Some may not survive 2 years.

The body length of parrot fish is generally between 10-30 cm, and the body length of different species is different after adulthood. Like mini parrot fish, the body length will be about 10 cm in adulthood, and few can exceed 10 cm. However, macaw fish are too large, and their body length is about 30 cm in adulthood. Other common parrot fish are about 20 cm long in adulthood, and some can grow to about 25 cm.

If breeders want parrot fish to grow bigger, they should be fed more high-nutrition food, so as to ensure that they have sufficient nutrition when they develop.