After spawning, how do swallow fish hatch? How to deal with swallow fish after spawning

After the end of spawning, how to hatch is a small problem, you can ignore him, let him hatch naturally, which is very trouble-saving and labor-saving, but the eggs are easy to be contaminated, the hatching rate is not high, and the broodstock is very tired, which is not conducive to the recovery of the broodstock. It is best to artificially incubate, remove the production plate and put it in a special incubation tank, the hatching rate is very high, and it is easy to manage, and the broodstock can be well recovered. The method is very simple, heat the water that has been dried for 3 days (add a little methylene blue sterilization when drying the water) to the temperature of the breeding tank (it is best to use the hanging bottle method, so that there is no temperature difference), and put the production plate in.

When placing the plate, remember to place the eggs diagonally upwards and lower the head of the plate to help smooth hatching. Incubation buckets are mastered in 10-15 liters of water with a water depth of 20-25 cm.

The eggs are hatched for 45-50 hours, and after hatching, they should be hung on the laying plate for 5 days, and only swim off the plate on the 7th day; There will be some dead eggs and small fish falling off the board, so you don't have to worry about them, just get rid of them when they are off the board.

Do not change the water during incubation, control the temperature, and add 4-5 hours of light every day.

5. Feeding of small fish.

Small fish swim away from the board for 5-8 hours before feeding open bait, and feed the larvae of the water or harvest shrimp. It is not good to feed egg yolk water, small fish do not like to eat, and the water is bad; A water change is unrealistic and you will find that it is not possible to operate at all. The first time, you should feed a little less, so that every fish can eat it, and if you feed too much, you will not digest it, but it will die fish; After the first feeding, it should be about 8 hours after the second feeding, so that the small fish have enough time to digest and adapt, and empty the "yolk water (milky mucus)".

After that, it will be easy to manage, you only need to feed three times a day, and the amount of each feeding should be eaten within 1 hour.

The water change of small fish should not be changed for the first time until the third day of feeding, the amount of water exchange is controlled at 10%-15%, first carefully absorb the yolk water excreted by small fish, and then add new water after drying and the same temperature. After that, change it every day or two days.

From the 7th day or so, you can feed the baby bloodworms; By the 15th day or so, the small fish will grow dorsal fins, at this time the small fish can feed the bloodworms, you can transfer them to the breeding tank, use the method of water, slowly sink into the breeding tank with the hatching bucket, and then gently take out the hatching bucket. By the 30th day, you can feed them all the bait you can give them, and you can change the water as you can do with the big fish.

Do I need to turn on the oxygen pump during the incubation process? Can juveniles stand it?

To fish out of isolation, the broodstock need to be fished out of the water for isolation and breeding to avoid the broodstock from swallowing fish eggs; After fertilization, the eggs should be placed in a separate container for incubation, the water temperature should be stabilized between 27 and 28, and sufficient oxygen should be ensured in the tank. Precautions: There is no need to feed during the incubation period, and the harvest shrimp eggs can be fed 3 days after birth to supplement nutrition.

After spawning, the broodstock needs to be fished out of the water, because the character of the swallow fish is more timid, after being frightened, it is easy to swallow the eggs, so after spawning, the broodstock needs to be fished out in time to be raised separately, and fed with protein-rich feed to supplement physical strength.

After the eggs are fertilized, they need to be fished out and put into a separate container for incubation, during the incubation period, the water temperature needs to be stabilized between 27 and 28, the pH value needs to be stabilized at about that, in addition, an oxygen pump needs to be placed in the tank to ensure that there is enough oxygen in the tank to make the eggs hatch normally.

Note that swallow fry do not need to be fed during the hatching period, because the fry will carry nutrients when they are born, and they can be fed after 3 days of birth, and they can choose to feed chopped bloodworms or shrimp eggs. In addition, an appropriate amount of astigmatism can be given so that the small fish can grow better.

Summary. Swallow fish eggs are about 1 mm in diameter, light yellow, translucent, slightly flattened round particles, during the incubation process, there are a small amount of fish eggs turned white, is no fertilized eggs, to be removed with tweezers in time, otherwise it can deteriorate and produce toxins and pollution. The eggs began to hatch, and the clear spots of the eggs turned black and irregular, and it turned out that a small tail had grown from the eggs.

There are more and more eggs hatched, from the side, it is a white layer, and it is shaking slightly, and after a while you can see the eyes of the fish, and so the small fish break out of the shell, and the belly is under the remaining egg shell, the first nutrition of the small fish is it, the small fish will slowly absorb it, after three days, the small fish will swim, they are gathered together in groups. It takes about 5 days from the end of spawning to the breakout of the shell, and 8 days from take-off.

Hello dear. Swallow fish eggs are about 1 mm in diameter, light yellow, translucent, slightly flattened round dust pure grains, during the incubation process, there are a small number of fish eggs turned white, is not fertilized eggs, to be removed with tweezers in time, otherwise it can deteriorate and produce toxins and pollution. The eggs began to hatch, and the clear spots of the eggs turned black and irregular, and it turned out that a small tail had grown from the eggs.

There are more and more eggs hatched, from the side, it is a layer of white, and it is shaking slightly, and after a while, you can see that the fish's eyes are closed, and when the small fish breaks out of the shell, the belly is the rest of the egg shell, the first nutrition of the small fish is it, the small fish will slowly absorb it, after three days, the small fish will swim, they are gathered together in groups. It takes about 5 days from the end of spawning to the breakout of the shell, and 8 days from take-off.

Colorful cans, other swallow fish with plates. I am inexperienced and use boards frequently.

The selection of ovaries must be suitable for the attachment of fish eggs, and I personally think that the tank is better.

It's better to use spawning tanks Fish prefer to spawn in quiet places.

The water temperature of swallow fish breeding can be 26 degrees, and the temperature can rise to about 28 degrees Celsius to lay eggs and hatch, and the incubation time is short if the temperature is high, but there may be deformities. At 26 degrees Celsius, the incubation time is extended. Oxygen should be supplied all the time during the incubation of swallow eggs, and if there is a power outage during the period, it can be maintained by a dry battery oxygen supply.

Otherwise, the interruption of oxygen supply for too long will lead to the loss of previous efforts.

During the spawning period of the breeding fish, it is necessary to keep quiet and do not disturb the breeding fish to spawn with peace of mind. Fingerlings are very vigilant and fierce in protecting their eggs, even desperate, so they should be quick and decisive when removing the egg beds from the spawning tank.