2. How do grass carp divide male and female?

3. How do grass carp divide the male and female figures?

4. How do grass goldfish divide the male and female pictures?

1. 1- 165438+

2. The female fish's pectoral fin 1- 10 is long, and the other fins gradually become shorter and naturally open like a fan. The pectoral fin is thin and short, and can only cover six scales.

3. Second, the starting point of the male fish's anal fin is naturally straight.

4. The end of the male fish's anal fin is naturally open and wavy.

5. Third, look at the abdominal scales. The abdominal scales of male fish are small and round, and arranged closely.

6. The scales on the abdomen of the female fish are large and round, and they are loosely arranged.

7. Fourthly, in the breeding season, the gonad of the male fish in idolize develops well, and idolize, that is, round small particles, appears on the pectoral fin and gill cover.

8. Female fish generally do not appear in idolatry.

9.5. When the gonad of the genital foramen is mature, if there is milky semen flowing from the abdomen, it is a male fish.

10. The abdomen is soft, big and round, and it is a female fish.