1, fin difference: the general betta fin shape and its gender is related. The fins of the male fish are usually larger than those of the female fish. Moreover, the anal fin of female fish is relatively flat at the bottom, while the anal fin of male fish has a certain inclination. Put the two kinds of fish together, you can see the difference clearly.
2. Abdominal difference: After adulthood, there is a more obvious and larger white spot on the abdomen of the female fish. During the breeding season, the belly of the female fish will bulge significantly. The ovaries can be seen by illuminating them with light. The white spots on the abdomen of male fish are not very obvious, and can hardly be seen without careful observation. During the breeding season, their bellies do not bulge.
3. Difference in body color: Generally speaking, the body color of the adult male fish should be brighter, while the body color of the adult female fish should be dimmer. This is a general rule, applicable to most of the fish, but also to individual cases do not conform to this rule. Therefore, it is generally used as a supplementary evidence to distinguish gender.
4. Habit difference: The male fish has the habit of building a bubble nest. During the breeding season, the male will spit bubbles to build a nest. Female fish do not have this habit, generally will not spit bubbles, but there are very few female fish will spit bubbles. So this can also be used as a general rule to help determine the sex of fish.
The general betta male and female can be raised together. However, when farming, we should control the density of farming, do not raise too many fish in small fish tanks, otherwise they may fight for territory. Also pay attention to control the proportion of male and female, do not put too many male fish, otherwise it is easy to fight. When mixed breeding, once you see them fighting, you should divide the tanks in time to avoid casualties.
