Female fighting fish are usually the drab colored ones (browns and greys.) while the males are usually the flashy reds and blues.
There are some more specific things but in general that will do to tell the two genders apart.
The males have a red tail.
they females are brighter and the males are paler
The males are the colorful ones with the fancy tails. No fancy tail, you have a female, they are dull and usually a brown color.
you can know by their tail their tail the female's tail is not big and large.The males on the other hand have big luxurious tail.
Males have longer and fuller fins and females have shorter fins
first obviously they need to see each other but in different tanks if the male is swimming around in circles spreading his find then he is wanting to spawn if the female is going up to the side of the tank closest to the males side and showing off her color then the female wants to spawn this is not all you need to know to spawn fish so keep studying!
Males need to be kept alone so it is wise to know what you have in order to avoid that problem.
Male betta fish are really colorful and generally larger. Female betta fish are clear colored and small. Male betta fish are probably the easiest to find as well.
two Males or two females? they are fighting over territory tring to find out who is the superior one. if 1 male and 1 female i think you know
males are bigger
By their genitals, males are larger that females Females are less aggressive
Don't put yourself in the position to be hugged and kissed. Males know when a female is approachable or not. Evidently your not standing your ground.Don't put yourself in the position to be hugged and kissed. Males know when a female is approachable or not. Evidently your not standing your ground.Don't put yourself in the position to be hugged and kissed. Males know when a female is approachable or not. Evidently your not standing your ground.Don't put yourself in the position to be hugged and kissed. Males know when a female is approachable or not. Evidently your not standing your ground.Don't put yourself in the position to be hugged and kissed. Males know when a female is approachable or not. Evidently your not standing your ground.Don't put yourself in the position to be hugged and kissed. Males know when a female is approachable or not. Evidently your not standing your ground.