1. Unsuccessful: the parent fish fails to breed young fish
(1) Parent fish are not very congenial, the reason: the age difference is too big. Wrong choice. They're all of the same sex.
(2) The cause of the defect is congenital defect. After birth defects, the breeders gave them sterilizing drugs.
(3) Environmental factors, too much interference, fish will only eat eggs and even young fish. The light is too strong. The production barrel is not suitable. The pH value of water is too high. The water temperature is too high. Water flow is too fast, UV light.
(4) The reason is that the female is 9 months old and the male is 14 months old. Without experience, it is usually necessary for the male and female to cooperate several times to successfully hatch their eggs into juveniles.
(5) If you are sick and have been stained with glass before you put it on the tank, the eggs will turn white and become moldy, fall off or be eaten by the male fish. Find out the cause of the failure and remedy it. The fish in the tank need time to cultivate their feelings, sometimes even months before they will mate. Therefore, do not judge too early that it is not successful. The breeder must be patient.
2. Success: the parent fish has successfully bred young fish
(1) Production process: parent fish body vibration. Clean the tube from time to time. The two fish beat each other's tails.
(2) The genitals of the two fish are exposed, and the female lays eggs along the spawning tube. The male then moves up the barrel and ejaculates into the eggs. The females lay about ten to dozens of eggs each time. Male repeat ejaculation.
(3) The eggs hatch, and the eggs hatch into juveniles within 48-60 hours. After 50-60 hours, the young fish began to swim and swim to the parent fish to suck the nutrient solution secreted by them.
(4) After spawning, the parent fish take turns to take care of the eggs and blow air. Take turns to guard the eggs. When there is an enemy, usually one fish guards and one fish attacks to scare the enemy away.
(5) Within 60 hours after hatching, the fish still take turns to guard and take care of the young fish. Sometimes, the young fish will be sucked into the mouth and moved to a proper and safe position. Sucking the swimming juveniles into their mouths and spitting them out on the production barrel, and concentrating them together makes them easy to take care of. The body turns black, ready to secrete nutrients, which breeders call milk. At this time, the juveniles only rely on vitellin, but they still don't know how to eat.
(6) After the fish hatched for 60 hours, the young fish began to suck the milk secreted by their parents. The small fish swam around with their parents. The fish that swam away was sucked into the mouth by their parents and moved to a safe place. The parents who were too naughty might simply eat him. If the number of young fish is too large, the parents will have a great burden, and their body color will turn darker.
(7) From 6 to 7 days after hatching, the young fish are stronger and can swim well. Young fish can be raised in large tanks. The newly weaned fish can eat the newly cultured shrimp.
Important points for breeders
1. The pH value should be 4.5-5.5 before birth and 5.5-6.5 after birth.
2. After spawning to the time when the young fish are removed, the parent fish is not fed.
3. Brood fish can only provide milk for 6-7 days, otherwise it will be overworked and affect the health condition.
4. From the 13th to 14th day of birth, the young fish must be picked up and raised in large tanks.
5. The parent fish have 3-4 days rest after the young fish move away, and then they can produce the next batch of small fish.
6. Broodstock will produce about 11 times in a row.
7. Of the 11, the first three failed.
8. A female in her life.
A total of 22-25 times can be produced, but after 11 times of production, it takes a long time to rest before the second ovulation begins.
