. Before the Mary fish is born, their body shape will change significantly. Before giving birth, we can observe the changes of their abdomen, at this time, their abdomen will expand more, and the color of the abdomen will deepen, there will be a phenomenon of blackening.
At the stage of spawning, we can observe the changes of their anus. At this time, their ovipositor will have an obvious falling phenomenon, or a punctate bulge phenomenon. If this happens, they will lay eggs in about two to five days.
In addition, because female fish are more sensitive to changes in water quality during pregnancy, it is necessary to ensure the cleanliness of water quality during pregnancy, adjust the pH value of water between 7-7.5, and maintain the stability of water temperature to avoid premature delivery of female fish.
? Under normal circumstances, Mary fish can reach sexual maturity in about 4-6 months when the water temperature is stable at about 25 C. They can reproduce once every 4-6 weeks or so. They have higher requirements for water quality during the breeding period, so they need to adjust the acidity and alkalinity of water quality, reduce the number of water changes, and avoid premature delivery of female fish due to changes in water quality. In addition, the water quality should be kept clean and the water temperature should be maintained, which is more conducive to their growth, development and reproduction.
