The life span of zebrafish can reach 3-10 years, but how long they can live depends on their living environment. Under normal circumstances, the life span of zebrafish grown in the wild is longer, especially that of zebrafish grown in the country of origin, which can reach about 10 years. Because the environment and climate of origin are more suitable for their growth, their life span is relatively longer. If it is artificially raised zebrafish, it can only live for 3-5 years. Because captive breeding can't completely simulate the wild environment, and captive zebrafish are relatively prone to illness, their life span will be shorter.

If breeders want zebrafish to live longer, they'd better prepare a comfortable living environment for them. In the usual feeding process, try to reduce illness.

Under normal feeding, the body length of zebrafish can reach about 4 cm. They are small fish, so they are not big in size as adults. Even if they are properly raised, their body length can only grow to 6 cm at most.

If breeders want them to grow faster, they'd better feed them more nutritious food, which can not only help them speed up their body development, but also make their physique stronger. In addition, breeders should ensure that their living environment is comfortable and try to avoid too much environmental fluctuation.