The average life span of artificially raised betta is about 2-3 years, which belongs to a relatively short life span among ornamental fish. If they can be given a more suitable living environment, their life span can reach about 3 years. If it is a betta fish growing in the wild, its life span may be longer, and some can even reach more than 4 years.

Betta has a short life span, but its growth speed is still relatively fast. Under the condition of normal feeding, betta fish can reach adulthood after 3-5 months of development. In addition, although their life span can reach 2-3 years, they will gradually lose their ornamental value in about 2 years. If breeders want to prolong their life, they must reduce the number of daily illnesses. If you find illness, you'd better treat it immediately.

The body length of betta fish in adulthood is about 5-6 cm, and there are some unusual species, which can reach 10 cm, and some even reach 16 cm.

How big a betta fish can grow is also affected by gender. In betta fish raised in the same environment, the size of male fish will be smaller than that of female fish, but the fins of male fish will be larger than that of female fish.

If breeders want to make betta fish bigger, they should feed them more nutritious food during their growth and development. It is also necessary to ensure that they live in a comfortable environment, so that they can grow bigger.