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Teach you to breed goldfish with a water tank
The use of fish tanks to breed goldfish at home not only saves costs but also adds a lot of fun to life. In order to meet the needs of fish lovers, the method of breeding goldfish with fish tanks is described as follows: First, the quality of selected goldfish fish species directly affects the quality of its next generation, should choose a healthy, pure varieties and good traits 2 Goldfish are used as breeding fish. This goldfish is fully mature and full of energy. First of all, to distinguish the male and female goldfish. The male and female can be identified by observing the goldfish's “chasing starâ€, which is a large white stalk of sesame grown on the tip of the dorsal fin of male fish. Whenever a goldfish breeds, the “chasing stars†of the male fish are very obvious. Some males do not have "chasing stars", indicating that they are not mature enough to be selected as fingerlings. When the females are mature, they often have enlarged abdomen and male tails. Second, spawning fish should be concentrated in the tank after careful selection. Before the female lays its eggs, appetite begins to subside, and a bunch of plants such as Pteris viridis should be placed in the tank. Old brown silk or hemp can also be used instead. When the weather is fine, under the stimulation of the male fish, about 6 to 7 o'clock in the morning, the females lay eggs on the plants. Two hours later, the females that produced the eggs should be fished out separately to prevent them from eating the eggs. Fish tanks with male fish also need to be completely replaced, preventing the secretion of female fish from contaminating the water and causing fish eggs to die. 3. Incubate the fish eggs together with the aquatic plants and put them into another cylinder, placing them in ventilation and sunny places. When the water temperature is 13 °C ~ 20 °C, the transparency of fish eggs gradually decreased after two or three days, while a black spot, and then 3 days to 5 days, the black spot expanded to a circle, indicating that the young fish began to develop. In a few days, the little goldfish hatched. Fourth, the bait fish hatched when small, if the tip of the needle, the body was black, do not eat nor move, attached to the bottom of the cylinder, cylinder wall or aquatic grass, this time to ensure a quiet environment, must not rush to remove the plants. After four or five days, the cooked egg yolk can be wrapped in gauze, and the egg yolk water can be fed to feed the small fish twice a day or three times a day, and the amount fed should be less. 5. Within two weeks after the water-changing small fish is hatched, due to the fact that the body is too small, it is generally not advisable to change the water, but it is necessary to ensure that the water is fresh. If small fish floating head is found, the fish should be removed and replaced immediately. The water can be changed once every 3 days to 4 days. When changing water, try to avoid hurting the fish. At the same time, the bait can also be gradually changed from small broth or cooked egg yolk to adult fish feed.