CATDOLL : CATDOLL: How to deal with goldfish after they lay eggs? How to deal with goldfish after they lay eggs

1. How to deal with goldfish after they lay eggs? How to deal with goldfish after they lay eggs

1. After the goldfish lays eggs, move them into a new container as much as possible. If you cannot find a new container and cannot provide a new living environment for the goldfish, then you should also replace half of the water used during the spawning period to ensure a stable and healthy water environment.

2. In addition, necessary anti-inflammatory and disinfection measures should be taken after the goldfish lays eggs. Methylene blue, potassium permanganate or table salt can be used for disinfection to prevent the infection of the goldfish's wounds from worsening. At the same time, sufficient oxygen and light must be ensured, which is very important for the recovery of goldfish after laying eggs.

2. What to do with Koi raw eggs

After the fish spawn, take out the grass with the eggs and put it in the prepared basin or pond for hatching. The water depth is about 30 cm. When putting the water grass, use stones as sinkers to make the grass float at a depth of about 5 cm from the water surface. Gently unfold the bundles of water grass by hand to avoid uneven emergence due to poor light due to the water grass not being spread out. When the water temperature is 17-18℃, the small fish will hatch in about a week. When the water temperature is 20-22℃, it will hatch in about 34 days. When the water temperature is around 25℃, the fish will hatch in about 48 hours. During the hatching process of goldfish, if the temperature changes suddenly, insulation measures must be taken. When the water temperature drops to around 10℃, the eggs are easy to die, resulting in hatching failure. During the incubation period, in order to keep the water with sufficient oxygen and clean water, you must insist on pulling out the dirt on the water surface with a cloth every day. This is what is called "beating the skin" in the jargon. During the incubation process, you should also carefully observe the changes in the eggs. During the development of normal fertilized eggs, they gradually expand due to cell division activities. If you observe carefully before the fish hatches, you can see two tiny black spots on the eggs. These are the "eye spots", indicating that the fry will soon break out of the membrane. The water cannot be changed during the incubation process. Changes in water temperature and water quality will affect the normal development of the eggs. The egg membrane of the fertilized egg cell quickly absorbs water and expands. The egg becomes light yellow and slightly transparent, which means it enters the embryonic development stage of the goldfish. If the egg cell becomes opaque and then gradually turns white, it is because it is not fertilized and the egg cell will not hatch.

1. Factors affecting hatching

The length of the fertilized egg incubation time and the emergence rate are closely related to the external environmental conditions. Among them, the water temperature has the most significant impact. The incubation temperature of goldfish requires a range of 18-30°C, and the optimal temperature is 20-22°C. Under this temperature condition, the fertilized eggs can be detached after 3-4 days of incubation. High water temperature leads to rapid development, while low water temperature leads to slow development. Both too fast and too slow embryonic development are unfavorable, and are likely to produce more deformed and defective fish, and will also reduce the survival rate. During the embryonic development process, if there is a sudden change in temperature, it will seriously affect the embryonic development of goldfish, and a large number of deaths will occur.

In addition to suitable water temperature, high dissolved oxygen content and appropriate pH value are also essential external conditions for the smooth development of the embryo.

2. Issues that should be paid attention to during the incubation process

After the fertilized eggs are collected, they should be transferred to the incubation pool for incubation within 1-2 hours and the temperature difference should be controlled to be less than 2°C;

Ensure that the water in the hatching pool is fresh, has sufficient dissolved oxygen, and is free of harmful organisms;

Do not turn over the fish nest at will during the incubation process and ensure that the fish nest and fertilized eggs are immersed in water;

After the yolk sac of the fry disappears and all the fry can swim independently (called "leaving the nest"), take out the nest 1-2 days later;

The water cannot be changed and the water should not be stirred during the incubation process to avoid affecting the development of the embryo and causing fry deformities or death.

Koi are mature at one year old, but generally to ensure quality, males are required to be 2 years old and females are required to be 3 years old.

All carp fish lay eggs, and very few of them lay fish directly. Fish like peacocks and mares give birth to fish directly.

3. What should I do if my goldfish lays eggs?

Goldfish(Details)

Goldfish are common ornamental fish, and they can reproduce by laying eggs. As long as they are properly managed, the parent fish can lay eggs every spring. What should the owner do after the goldfish lays eggs?

Goldfish lay eggs every year, but the specific time varies slightly according to the temperature in different places. The earliest ones can lay eggs in the greenhouse in January and February. In general areas, outdoor eggs are always laid from early April to mid-May. Of course, the early or late spawning can be affected by many factors such as temperature, water quality, air pressure, light and dissolved oxygen. Therefore, in the process of artificial breeding, the spawning time of goldfish is often controlled by regulating these factors.

After the goldfish lays eggs, move the parent fish into a new container as much as possible. If you cannot find a new container and provide a new living environment for the parent fish, you should also replace half of the water during the spawning period to keep the water environment stable and healthy (after the goldfish lays eggs, there will be a lot of turbid semen and unfertilized eggs in the water, which will produce a strong fishy smell, and the water quality will quickly deteriorate, which will seriously endanger the health of the goldfish).

In addition, necessary anti-inflammatory and disinfection measures should be taken after the goldfish lays eggs. Methylene blue, potassium permanganate or salt can be used for disinfection to prevent the infection of the goldfish wound from getting worse. At the same time, sufficient oxygen and light should be ensured, which is very important for the recovery of goldfish after laying eggs.

After goldfish spawn, in addition to managing the living environment and disinfecting and sterilizing, diet is also very important. Sufficient live bait is a necessary condition for the fish to recover as soon as possible. Live bait not only contains rich protein to meet the needs of fish growth and development. Of course, when feeding live bait to goldfish, it is also very important to monitor the water quality environment standards and provide a healthy living environment for goldfish.

4. What to do if goldfish lay eggs?

Change them into new water, and put the water plants and fish nests prepared in advance into the water. At dawn, the broodstock chase each other, and several male fish chase a female fish continuously, and push the female fish into the water plants or fish nests. The female fish shakes, and the eggs fall down in rows. The male fish immediately ejaculates, and the fertilized eggs are scattered on the water plants or fish nests. It usually takes several times for a female fish to lay all the eggs in her body. Several female fish will lay many eggs. When you see that there are many eggs on the fish nest or water plants, you can take out the nest with fish eggs and put in new water plants or fish nests. The nest with fish eggs can be immersed in a 0.2PPM concentration of malachite green solution for 3-5 minutes, and then put in clean water for incubation. The spawning activity of broodstock can generally last until 9-10 am. The last batch of nests with fish eggs are taken out, disinfected and put into the hatching tank. At dawn the next day, the broodstock will have spawning activities again. Generally speaking, the spawning activity of broodstock in the same tank can last for 2-3 days. After the first spawning of the broodstock, the second spawning can usually be carried out after an interval of 7-10 days.

After the female fish lays eggs, it can be put back into the original tank to strengthen nutrition. It is best to increase oxygen in the basin with eggs.