before the abdomen of goldfish will change, first of all, their abdomen will become larger than usual, and feel soft. When they are about to give birth, their food intake and activity will decrease. If the breeder has not isolated them at this time, the goldfish will find a suitable place for breeding, and then keep it all the time. During this period, when other fish approach, they will come forward to drive them away. Before they give birth, some mucus will be discharged from the lower part of their abdomen. Goldfish will breed soon after secreting mucus, and breeders need to transfer them to a new breeding tank immediately.
after goldfish spawning? 1. Parent fish: After parent fish breeding, breeders need to fish them out immediately to prevent them from eating their eggs. The parent fish should not be returned to the original tank immediately, and it is best to keep them in a separate container for several days. Because the parent fish is weak after childbirth, if it is put back to the original tank immediately, it is easy to be bullied by other fish.
2. Fish eggs: After the goldfish produces fish eggs, the breeder needs to keep the water temperature at 30 ℃ and ensure that the dissolved oxygen in the fish tank is sufficient. In this way, they can be hatched successfully in about 1-2 days. The hatched fry can not be fed for the first three days, and after three days, a small amount of shrimp eggs or cooked egg yolks can be fed.
