How do peacock fish divide male and female

Peacock fish is a kind of tropical ornamental fish of the genus guppies, which is favored by tropical freshwater fish breeders for its rich colors, colorful shapes and exuberant fecundity. however, many people do not know how to divide male and female peacock fish. Let's take a look!

Morphological characteristics of peacock fish

1. Male fish: male caudal stalk and caudal fin account for about 2 × 3 of the body length, and the caudal fin has various shapes, such as piano tail, round tail, flag tail, crown tail, triangular tail, swallow tail, upper sword tail, lower sword tail, double sword tail, spear tail, needle tail (different from disease "needle tail") and so on.

2. Female fish: the length of female fish is up to 6 cm, and its caudal stalk and caudal fin account for more than 1 / 3 of the whole body. Each fin is shorter than that of male fish, and its body color is much lower than that of male fish. Most of them are single silver gray.

Discrimination of male and female of juvenile peacock fish

For young peacock fish, generally speaking, if the development is relatively normal, a small fish of about a month can distinguish between male and female. If it is difficult to distinguish between male and female for more than a month, it may be due to poor food or water quality, which may lead to the slow growth and development of young peacock fish. At the same time, it will also be affected by temperature, bait, strains, individual differences and other factors, fast or slow for about a week. It may not be possible to rely on the identification methods of adult peacocks such as "whether the tip of the anal fin is round or not", but it is also possible to distinguish between male and female before the anal fin changes obviously.

1. Male fish first hair color: generally speaking, peacock fish male fish first hair color.

2. Look at the back of the belly: the color inside the belly of the little female fish can be seen (the embryonic form of the "fetal spot" of the big female fish), while the little male fish is covered with a white belly and can hardly see the color inside.

Discrimination between male and female of adult fish peacock fish

1. The color of the female fish is not as bright as that of the male fish. The male fish has large fins, beautiful body color and many patterns, while the female fish is not. The female fish has short fins, single body color and no gorgeous patterns, but the female fish with patterns on the fins are of better quality.

2. the tail of male fish is relatively large, the tail of female fish is smaller, the body of adult male fish is about 3 cm long, the body is short, the tail length accounts for about 2/3 of body length, or even larger, adult female fish body length can reach 5-6 cm, body length is long, caudal fin is short, tail length accounts for more than 1/2 of body length, generally the tail is black.

3. The gluteal fins of male fish are long rods, the anal fins of female fish are fan-shaped, the ventral fins of male fish are slender and have a small hook at the tip, and the ventral fins of female fish are wide and short. The characteristic of male fish is that their abdomen is small and thin. The most important thing is that his gluteal fins evolve into a copulator, which is used to transport sperm during reproduction, so the several fins in front of the anal fins of male fish are relatively thick, while the anal fins of females are uniform.

4. Fetal plaque is only found in female fish. Male fish have no fetal plaque, and male fish have beautiful patterns all over the body, so the viscera in the abdominal cavity can not be seen, while the body of female fish is transparent. If there are black spots on the anus, it shows that it is pregnant (there are also species of red fetal plaques), the larger the fetal plaque is, the closer it is to production.

5. If the peacock has not had hair color for 1-3 months, you can only look at the anal fin, the tip of the anal fin is the male, and the round gluteal fin is the female.