1, see appearance: The simplest way that map fish distinguishes male and female is to see their appearance. Generally speaking, the head of male fish is bigger and fatter, and their fins are pointed and long. Female fish have relatively small heads and small anal fins, which allow breeders to distinguish between males and females.
2. Look at the body shape and color: The breeder can also judge by their body shape and color. The male fish will be bigger, but the body will be longer and thin. The female fish will be smaller and round. The body color of the male fish is bright, and most of the gills are bright yellow, while the color of the female fish is relatively dim.
3. Look at the breeding characteristics: If it is impossible to distinguish the male and female through the usual observation, the breeder can distinguish them during the breeding period. When the female fish reaches the breeding season, the belly will bulge slightly and feel soft, while the belly of the male fish is flat.
? The reproduction of map fish is relatively simple. They are all paired by themselves. When a pair of map fish are found to be inseparable, it means that they are paired successfully. When the parent fish often stand upside down to eat the bottom of the tank, it means that they are going to spawn. When breeding, the female fish will lay eggs first, and the male fish will come forward to inseminate. After the insemination is completed, the parent fish can be fished out. The fish eggs need to be hatched in the water temperature of 26 deg C for 2 to 3 days, during which the breeder does not need to change the water or turn on the light, and only needs to wait for the fertilized eggs to hatch.
