Artificially reproduced red zebrafish, how to reproduce zebrafish?

It is not difficult to distinguish between male and female zebrafish: male zebrafish have a slender body, large fins, yellowish body color, brownish-yellow anal fins, and prominent stripes; The female fish has a fatter body, a lighter body color, a bluish tinge, a pale yellow anal fin, and an obvious abdominal expansion during the egg-bearing stage. Water requirements for reproduction, hardness 6-8, water temperature 25-26 degrees Celsius.

Like to spawn at the bottom of the aquarium, zebrafish like to eat their eggs the most, generally choose 6-month-old broodstock, in the 25 cm x 25 cm x 25 cm square tank bottom lay a layer of nylon net board, or lay some pebbles, after breeding will fall under the net board or scattered in the gap of small pebbles. Select 2 or 3 pairs of broodstock, put them in the breeding tank at the same time, and generally take out the broodstock from dawn to about 10 a.m. the next day. The eggs are non-sticky and fall directly to the bottom of the tank, and at about 10 p.m., the eggs that have not been fertilized are white and can be sucked out with a straw.

At the breeding water temperature of 24, the fertilized eggs hatch larvae after 2 to 3 days; At a water temperature of 28, the fertilized eggs hatch after 36 hours. Females lay more than 300 eggs at a time, up to 1,000 eggs. When the water temperature is 25, the larvae of 7 to 8 days are fed, and the egg yolk gray water is fed at this time, and the small fish and insects are fed later.

The breeding cycle of zebrafish is about 7 days, and it can reproduce continuously 6-7 times a year, and the spawning is high. It is highly fertile, making it the preferred breed for beginners in tropical fish.

The zebrafish breeding method is as follows:

Zebrafish are oviparous fish, and the male usually chases the female during reproduction, and the male completes in vitro fertilization after the female spawns. When the female is about to lay eggs, the color of her belly will become lighter, and after giving birth, the broodstock will be fished out of the tank, and the fertilized eggs will hatch soon. The general incubation time is 36 hours.

During the incubation period, the water quality should be stable to avoid reducing the hatching rate.

Hello, happy to answer your questions. Zebrafish reproduction can be carried out according to the following steps: 1. Prepare tools:

For zebrafish to breed, you first need to prepare tools. The most important thing is a separate breeding tank, and there are also some equipment, such as oxygen pumps, filters, etc., which are sometimes used. 2. Choose broodstock:

Then it's time to choose broodstock. Zebrafish must be selected that have entered the stage of sexual maturity, and there are other criteria, such as good appearance, physical health, obvious breed characteristics and relatively high activity. 3. Spawning and insemination:

Choose 2 or 3 pairs of broodstock and place them in the breeding tank. Make sure that the water environment is right, and they will lay eggs and inseminate around 10 a.m. the next day. The next thing that needs to be done is to suck out the eggs that have been inseminated with a straw and remove the eggs that have not been inseminated.

Those eggs that have not been inseminated are generally whitish and easier to distinguish. 4. Incubation: Incubate the fertilized eggs in a suitable water temperature environment.

Specifically, if the water temperature is around 24 degrees, then the incubation time is about 2-3 days; If the water temperature is around 28 degrees, then the incubation time will be shorter, more than a day. Therefore, it is necessary to adjust the temperature in time.

For zebra breeding, the pot-bellied female and male fish can spawn separately.

The zebrafish breeding method is as follows:

1. It is easier to distinguish between male and female with blue stripes of females, and the blue stripes of males are yellowish with lemon-colored stripes interspersed. Blue and bright, with silver-gray stripes interspersed, the body is plump and stout than the male, and the fins are shorter than the male. It is relatively easy to breed, and the water temperature for breeding is 249.

2. The bottom of the breeding tank should be covered with a layer of small pebbles as a shelter for fish eggs. Broodstock are put into the box according to the ratio of two females and one male, and spawn after chasing for about 1 day. The eggs are non-sticky, heavy eggs scattered in the gaps of small pebbles.

3. At the end of spawning, the broodstock should be taken out immediately to avoid eating the eggs. Each female lays about 300 eggs at a time, and the larger ones can sometimes lay thousands of eggs. The fertilized eggs hatch after about 36 hours, and after 2 days, the yolk sac of the juvenile fish disappears and can swim and feed.

4. In order to prevent fish eggs from being infected by bacteria when they hatch, two drops of 5% methylene blue can be added to the box. Juveniles can distinguish between male and female after about 2 months, reach sexual maturity in 5 months, and can reproduce 6-8 times a year.

Methods of breeding zebrafish

1. The water quality requirements are not high: the feeding water temperature is 20-23, and the water temperature is 11-15 when it can still survive, the requirements for water quality are not high, the water quality of zebrafish is neutral, but it likes soft water, if the water quality needs to be used during the breeding of the next generation, soft water can improve fertilization and hatching.

2. Daily feeding of fish tank: When daily feeding, you can put some pebbles at the bottom of the aquarium, which can make the water quality relatively clear. It is best to use a 30m aquarium for keeping fish tanks.

Because the body size of zebrafish is 3-4cm long, it is a relatively small ornamental fish, but the specific size of the tank depends on the amount of feeding. Zebrafish have a very simple diet and can be ingested naturally and artificially.

3. Natural artificial bait: The eating habits of zebrafish are quite simple, whether it is natural bait or artificial compound feed can meet its growth needs, and zebrafish will also eat.

4. Polyculture of other species: Zebrafish has a mild temperament, a body size of 3-4cm, small and exquisite, and swims in the aquarium almost all day long. It is easy to raise and can be mixed with other species of small and mild tropical fish.

5. Age selection of broodstock: zebrafish is an oviparous fish, 4 months old into sexual maturity, generally choose to use 5-month-old fish as broodstock, plus the fish should be strong and strong, in order to reproduce better.

For zebra breeding, the pot-bellied female and male fish can spawn separately.

Zebrafish breeding is very special, you have to put a large stone at the bottom of the fish tank, let the eggs fall into the gap, after ovulation, take out the big fish, let the small fish hatch, your breeding box does not put something at the bottom, he did not spawn, it is not ready.

Red zebrafish and blue zebrafish can reproduce, they are both the same species of fish, there is no reproductive isolation, so they can be crossed. There are many breeders who cross red zebrafish with blue zebrafish, and the crossed zebrafish will retain blue stripes, but the body color will be pale red, and some will retain red stripes. So red zebrafish and blue zebrafish can be bred together.

Red zebrafish and blue zebrafish are fertile because they belong to the same species of fish and there is no reproductive isolation. The biggest difference between them is the color of their bodies, so it's okay to breed together.

And now many breeders will choose to cross red zebrafish and blue zebrafish together, and some of the crossed zebrafish will retain blue stripes, but the body color will be pale red. Some retain red stripes and have a slightly bluish body color.

1. Prepare the breeding environment: zebrafish does not have high requirements for the breeding environment, and the keeper only needs to ensure that the water temperature is about 26, the water quality is clean and refreshing, and the surrounding environment is quiet.

2. Choose the right broodstock: If you want zebrafish to reproduce, you must choose mature broodstock. When choosing broodstock, it is best to choose some with bright body color and high activity, so that the quality of reproduction can be higher.

3. Mating: Zebrafish are oviparous and fertilized in vitro. During breeding, the male will chase the female, and then the female will spawn in the process of chasing. Immediately after the mother fish lays eggs, the male fish will go forward to inseminate them, at which point the eggs will become fertilized eggs.

4. Hatching: The fertilized eggs can hatch small fish after 2-3 days in a water temperature of about 26. During incubation, the breeder needs to keep the water temperature constant and try not to change the water. After the small fish hatch, the water can be changed in small amounts.

After pregnancy, the red zebrafish will gradually have a larger belly, and it will also become bad-tempered, easily irritable, and will run after the male, and the flexibility of swimming will be reduced. The genital hole will protrude and the underside of the abdomen will appear pink. Before the breeding season, the red zebrafish will gradually have a larger belly, and its temper will become a little irritable, and sometimes it will swim around in the tank, which seems very anxious.

They also run after males, and their swimming agility is reduced.

Another great feature is that the genital hole will protrude and the lower part of the abdomen will appear pink. When the eggs are about to be laid, the right amount will turn pink.

When it is found that zebrafish are suitable for breeding, it is necessary to prepare the tank in advance, select 2 to 3 pairs of female and male fish to cultivate affection, and the temperature and equipment of the tank should be prepared in advance: pebbles, nylon mesh boards, straws, etc.