Any fish can fight one another given the individual fish and conditions however female betas are unlikely to do so.
yes, if you put another male in the tank they will kill each other, if you put a female in the tank and they are not ready to breed the male may attack the female and kill her.
Male and female bettas will not normally fight each other; males will fight other males. The attached link below is a page with great information on the breeding of bettas.
All bettas will fight each other, male or female. Always keep them separated.
NO female bettas do not fight each other
Mainly for territorial and mating purposes. Bettas are very territorial and will attack any fish with bright colors and large fins. Especially other Bettas. Bettas flare when threatened by opening out their fins and extending a 'beard' from under their gills.
Male bettas are known for their aggressive behavior towards other male bettas, particularly when defending their territory or competing for mates. They may engage in fighting by flaring their fins and displaying aggressive behaviors towards each other. In contrast, female bettas can generally coexist peacefully with each other, although some individual females may also display territorial behavior.
You can NOT keep female and male bettas together! Male bettas can get very aggressive and will fight to the death. Make sure to separate your bettas.
yes. my friend found that out the hard way. they will kill each other
No, they can live alone or with other female bettas. They might bite each other but won't kill.
During the mating season they will like each other. Otherwise the female will attack the male.
yes if they are too close
No the two male bettas will kill each other if they are put in the same tank.