How can a baby goldfish separate male and female?

How do goldfish distinguish between male and female? Show 3 characteristics, and you can quickly distinguish them.

To accurately distinguish the male and female of goldfish, in addition to mastering the basic essentials introduced in the book, the main thing is to carefully observe the external morphology of different goldfish species, the differences in swimming and the changes in the external form of goldfish in different periods in the process of long-term breeding.

Male and female goldfish are mainly distinguished from the following aspects:

1) The difference between the external form of the Han Gong Feng Feng Wei Li:

1) Difference in body shape: Male goldfish are generally slightly longer, while female goldfish have a shorter and round body. During the egg-bearing stage, females have larger abdomen than males.

2) Difference in caudal peduncle: males are slightly thicker than females.

3) Differences in pectoral fins: careful observation shows that males are slightly pointed and long, and the first pectoral fin spines are thicker and harder; Females are short and round, and the first fin spines of the pectoral fin are not too hard.

4) The difference between the cloacal pores: from the belly upwards, the cloacal pores of male fish are small, narrow and concave; The cloaca of females is large, slightly rounded, and convex outward.

2) The difference in color: the male and female goldfish are slightly different in body color, the male fish is generally brightly colored, while the female fish is slightly lighter, and the male fish is more vivid in the reproductive development period.

3) Feel and movement: Gently support the belly of the fish with your hands, and feel a clear hard line on the abdomen of the male and female with the middle finger and ring finger, while the female has a softer abdomen. When walking past the edge of the pond, stomp on the ground and observe, the male swims fast and agile, while the female moves slower.

4) Star chasing: As the temperature rises, goldfish will have a second characteristic during the spawning period - star chasing, which is the easiest and most accurate time to identify the sex of goldfish, and it is also the easiest way to grasp a method of identification. The star-chasing of male fish appears on the first spine of the pectoral fin and the edge of the gill cover, and often there is a star-chasing on each fin bar of the entire pectoral fin, the front end is obvious, and the back one must be carefully observed.

This kind of rough little white dot is star chasing.

Using the above identification methods, it is also necessary to rely on many years of breeding experience and careful observation to accurately distinguish the male and female of goldfish.

The method of separating male and female children into small goldfish is: look at the belly of the goldfish, look at the body shape of the goldfish, look at the tail of the goldfish, observe the swimming of the goldfish, and observe the color of the goldfish.

1. Look at the belly of the goldfish

Observing the male and female goldfish, many people's first reaction is to look at the belly of the goldfish, if the bulging represents that the goldfish is pregnant, this is the female fish. But you can't see it if it's not in the breeding season. And you also have to consider whether the goldfish is sick and has a big belly.

2. Look at the body shape of the goldfish

First of all, we can start with the size of the goldfish, the body size of the adult male goldfish is as slender as a willow leaf, and the body size of the goldfish is often short and fat. If you compare a tank of goldfish together, you can quickly tell that the male and female of the goldfish are coming according to their body size. This is an important basis.

3. Look at the goldfish tail

By looking at the tail of a goldfish, you can also determine the sex of the goldfish. Generally speaking, male goldfish are thicker than female goldfish, especially the tail part, male goldfish tail is relatively wide and flat, and female goldfish are obviously different, obvious people can distinguish at a glance.

4. Observe the swimming of goldfish

When the goldfish swims, the male and female can also be seen, and the male goldfish swim more agilely. They also swim fast, with female goldfish being more tame and swimming more slowly.

5. Observe the color of the goldfish

If you look closely at the appearance of the goldfish, the more colorful ones are the males. In addition, the color of the goldfish is also an indication of whether it is healthy, if the color becomes lighter, it means that the fish may be sub-healthy, to change the water or immediately change to feed the color of the fish food, the treatment is early, the goldfish can recover the bright and trembling true color of the eggplant spine family in the shortest possible time.

The methods of dividing male and female goldfish include looking at the body shape, pectoral fins, color, behavior, and excretory holes.

1. Look at the body.

Observe the body shape of the goldfish, if the body is thick and short, it means that the goldfish is a female goldfish; If it is long and thin, it means that it is a male goldfish.

2. Look at the pectoral fins.

If the shape of the pectoral fin is wide and round, it means that it is a female goldfish with a wide grip, and if the shape of the pectoral fin pins is narrow and flat, it means that it is a male pectoral fin. During the breeding period, there will be a string of obvious white bumps on the first hard bone of the pectoral fin of the male, which is a star chaser, and the female does not have it.

3. Look at the color.

If the color is bright, it means that it is a male goldfish, and if it is dull, it means that it is a female goldfish. The ornamental value of male goldfish is somewhat higher than that of female goldfish.

4. Look at behavior.

Observe the habits of the goldfish, if the goldfish is very lively and loves to play in the water, it is likely to be a male goldfish, and the female goldfish are usually more docile and only like to swim slowly. During the breeding season, males will chase females back and forth in the tank, which can also distinguish between male and female goldfish.

5. Look at the excretory holes.

The excretory pore of the male is elongated, long in strip, with no convex central depression, and it is very flat when viewed from the side; The excretory orifice of females is oval or diamond-shaped, and it will be convex from the shiny side of the side segment, which is very clear and easy to distinguish.

Goldfish are divided into male and female: goldfish can be distinguished by different body types, generally male goldfish body size will be more slender, while female goldfish body size is generally short and round.

We can also start with the size of the goldfish, the adult male goldfish are slender like willow leaves, and the body size of the goldfish is often short and fat. Comparing a tank of goldfish together, you can quickly see that the male and female of the goldfish are coming according to their body size, which is an important basis.

Goldfish is one of the world's three famous ornamental fish, originated in China, has a history of more than 1700 years, goldfish in China's ornamental fish exports occupy a very important position. Goldfish has a beautiful body and a wide variety of species, its body color is red, yellow, blue, purple, black, white, two-color, three-color, five-flower, etc., its body shape has lion head, high head, blister, dragon eye, pom-pom, pearl scales, butterfly tail, tiger head and so on.

The five representative varieties of goldfish are grass gold, red dragon eye, crane top red, blister, and black longevity.

Morphological characteristics:

Goldfish belong to the same species as crucian carp taxonomically, and compared with crucian carp, goldfish have huge variation in external morphology, but in general, the whole fish body can be divided into three parts: head, trunk, and tail. The anterior end of the head is the mouth, and the posterior part has the nose, eyes, and gill cover.

Male goldfish that enter the breeding period will appear white star chasing on the gill edge and pectoral fin, which is the most accurate moment to identify the sex of the goldfish.

The above content reference: Encyclopedia - Goldfish.