Betta is a relatively small tropical fish, which can generally grow to about 5cm.

However, it has many varieties, some of which can naturally grow bigger.

In a suitable environment, these varieties can grow to 12 cm or even 15 cm long.

The factors that can affect the body length of betta are not only the species, but also the sex.

Usually, the male betta of the same species is slightly smaller than the female betta, but the fin of the male betta is more developed than that of the female betta.

1. How big can the fighting fish grow? Betta is a relatively small tropical fish, which can generally grow to about 5cm.

However, it has many varieties, some of which can naturally grow bigger.

Under suitable breeding conditions, they can grow to 12 cm or even 15 cm long.

How big the fighting fish can grow is also related to its gender.

Usually, the male betta is smaller than the female betta, but the male betta has larger fins than the female betta.

Second, how long can betta fish live? Betta fish can generally live for 2-5 years.

How many years it can live has a lot to do with the breeding environment.

If the breeding conditions are good, it can live for 5-6 years.

The current record is 8 years.

If the breeding environment is poor, it can only live for 2-3 years.

Using 25-28℃ water in culture can make betta fish grow better and live longer.

Third, how big can betta fish breed? Betta fish can reproduce 4-8 months after birth, that is, when it grows to 5-6cm.

However, premature breeding is not good for the fish itself.

Therefore, it is recommended to wait until the fish are bigger.

Generally, female fish can reproduce as long as they have eggs, while male fish can reproduce by spitting bubbles.

However, too frequent breeding is not good for fish, and it is generally recommended not to breed more than four times a year.

Don't breed more than once a month.