Mary, there are many omens for fish to give birth to small fish. First of all, its stomach will become larger, and it will become unwilling to swim. It usually hides in the corner and stays alone. Near birth, the reproductive pore will turn white. This kind of fish usually matures sexually in half a year. Put the sexually mature fish into the breeding tank according to the male-female ratio of 1:2, and they can mate and reproduce. After pregnancy, females need to be raised alone until they give birth to small fish. 1、 There are many signs before Mary fish gives birth to a small fish. For example, its stomach will become bigger and bigger. In this case, it needs to be isolated in time. In addition, they often don't move before production. They like to lay eggs in corners, especially in places with water and grass. In addition, during production, the reproductive pore will be milky white. 2、 Breeding methods of Mary fish 1. Selecting parent fish: Mary fish usually mature sexually in half a year. At this time, select male and female fish with better growth as parent fish, put them into the breeding tank and let them complete mating in it. The ratio of male to female fish is 1:2, so as to ensure that the female can be fertilized.
2. Water temperature and quality: Mary fish can tolerate a low temperature of 10 ℃ at ordinary times, but the breeding period must not be so low, otherwise it will affect the laying of females and the growth of larvae. The water temperature should be kept between 25-28 ℃, the pH should be controlled at about 7.2-7.6, and the hardness should be 9-11.
3. Waiting for spawning: Mary fish is a viviparous fish. It is usually fertilized in vivo. After the fertilized egg develops into a larva, it will be produced. It is usually found that when the abdomen of the female fish is swollen and blackened, it can be fished out and cultured separately to avoid being swallowed by the male fish.
4. Young fish development: the newborn fish can swim and feed. At first, the color is dark gray, and then it will gradually turn black. Usually, the male and female can be distinguished within two months. （MaLiYuShengXiaoYuQianZhao，MaLiYuDeFanShiFangFa）