Swallow fish will breed when they are raised to a certain extent. Swallow fish are oviparous animals, so they will ovulate continuously during the breeding period. When the breeding season of swallowtail comes, all owners should fully grasp the different breeding periods of swallowtail and create a good environment for swallowtail.

Choosing a good fish is the first step in swallowtail breeding, so choosing a fish must first know how swallowtail fish is divided into male and female. The male fish has a slightly convex head, while the female fish has a flat head but a round belly. Swallow fish can be ready for breeding after ten months. The pairing of angelfish needs to be voluntary. Usually, those who are successfully paired are selected from a tank of mixed angelfish. If the strong alliance, most will fail. If there is a parent fish that can breed, you should pay attention. If two fish swim together and their anus droops and protrudes, you should move the two parent fish to the culture pond and prepare the angelfish culture bucket. At this time, you will see two parent fish begin to clean up their breeding grounds. After 48 hours, the female fish lays eggs and the male fish is fertilized. After laying eggs, the parent fish will keep swimming on the eggs to provide oxygen for the eggs, and the number of eggs laid by each female fish can reach hundreds to thousands. Both male and female fish will eat unfertilized white eggs, but they will not eat fertilized eggs, which can be assured.

For the breeding environment of swallowtail, the emphasis here is water. What kind of water is usually used for farming? The water temperature is 65438 0℃ higher than usual, and the water change is normal. I usually use tap water to raise fish, so I also use tap water to raise fish directly; Without heating when changing water, the temperature of the culture pond fluctuates, which has a good stimulating effect on fish culture. However, special attention should be paid to the speed of adding water, which must be slow and controlled at about half of the drainage speed. You can't wash fish directly, but you can add it to the upper filter box for buffering.

Finally, in the process of incubation, we can adopt natural incubation or artificial incubation. In the case of natural hatching, the parent fish will take good care of the eggs, and the male and female fish will fan the water in turn until the young fish hatch out of the membrane. Now let's pay attention to artificial incubation. When the parent fish lays eggs, we should immediately put the spawning board into the incubator, and put water with the same temperature as the water tank, and set up a "water demon" instead of the parent fish, and then slowly wait for the eggs to hatch. Pay great attention to the abnormal water temperature in the incubator here, and try to keep the water temperature constant.

Egg beds are most suitable for making plates, such as pots, cans and pipes, but swallowfish still prefer plates, and the material of plates is not critical, as long as they are flat and smooth; It is best to use a green plastic tray with a length of 20-25 cm and a width of 8- 10 cm, which is placed at an angle of 10-20 degrees (imitating the natural angle of aquatic plant leaves), with the lower part leaving the bottom of the pool, the upper part of the spawning tray being about 3 cm below the water surface, and the eggs of swallowtail fish are generally laid within a range of 5-20 cm below the water surface.

In addition, the method of artificial incubation has its limitations after all, so once the dead eggs with white color are found in the whole incubation process. Drain with a straw in time to prevent the whole box of water from being infected by water mold!