Red crucian carp in the first hatched out, there is basically no way to distinguish between male and female. As they grow older, it becomes easier to distinguish between males and females. Specifically, can be distinguished from the following three aspects:
1, size: If the red crucian carp is in the adult stage, you can distinguish from their size. If the body size is relatively long, but relatively narrow, then the male fish; If it's short, but wide, then it's a female. However, it takes about the same age of red crucian carp to compare in this respect.
2. Appearance: There are also differences in the appearance of male and female fish. Their fins are different, especially the pectoral fins. Males have long pectoral fins and are hard to the touch, as opposed to females.
3. Breeding season: When it comes to breeding season, you can also look at their abdomen. Those with very large bellies are naturally females, while those with very large bellies are males. In addition, you can also see their genital pores, the female fish's genital pores are relatively large.
The female and male red crucian carp can be raised together. Their character is relatively mild, male and female fish together generally do not fight. Moreover, if the age is the same, then their body size difference will not be too big, and the habits and characteristics are relatively consistent, can be raised together. However, because of their large size, if they are mixed, they need to pay attention to providing enough space and food.
