How long does it take for a newborn small fish to live with a large fish

About 1 month.

Guppies. Small fish generally need 1 month to be in the same tank as large fish. At this time, the body shape of the small fish should be about one-third of that of the big fish, so that the body shape can avoid being eaten by the big fish, so there is no risk of being in the same tank. As a common small aquarium fish.

There are many types of guppies, their rich colors and temperament, which can be polycultured with many other small fish, but the only disadvantage is that they have a short lifespan.

Guppy feeding precautions.

Guppy larvae do not need to be fed on the first day of life, and can be fed in small amounts from the second day, and the food should be live bait, such as harvest shrimp.

Water earthworms, nematodes, or some egg yolks can be fed.

However, when feeding, the egg yolk should be crushed and wrapped in gauze, and then placed in the fish tank and shaken to facilitate the feeding of the fish larvae.

The number of feeding of guppies should be 2-3 times a day, and the amount of feeding each time should be enough for the larvae to eat within 20 minutes.

After feeding, it is necessary to pay attention to cleaning up the feces and leftover materials of the fish larvae in time to prevent the water quality from deteriorating.

The above content refers to Encyclopedia - Guppies.

Big fish change 1 3 water every two weeks, and all the water can be changed once a month.

The big fish should be kept separately from the small fish, so that the big fish do not eat the small fish.

Small fish are very easy to raise, as long as you pay attention to the following points.

1. As long as you master feeding and changing the water, don't feed on the first day, and feed on the second day.

Water temperature is very critical to the growth and development of fish, the temperature of the fish should be around 25, small fish generally like the old water, as long as it is not too turbid do not change too often, feed 2 3 times a day, each time to eat within 20 minutes is better. Pay attention to clean up the manure and residue in time to avoid the high temperature and water quality deterioration in summer.

Second, there are several ways to feed:

1.Feed paramecium, prawns, and earthworms. Shrimp can be hatched by buying eggs at a fish shop.

2.Egg yolk, you can crush it and wrap it in gauze, and shake it in the fish tank when feeding. You can also use a small portion to put it in the water.

3.Fodder. If the feed for large fish is solid pellet feed, you can grind it and put it in water, the feed will be soaked softly, and the small fish can eat it.

The larvae are relatively small, so it is ideal to catch small bloodworms or cultured 'grey water' (including paramecium) to feed, but do not feed too much to prevent water spoilage.

3. When changing the water, it is necessary to pay attention to the difference between the water quality and the temperature, and the water temperature change must not exceed plus or minus 2 degrees. Otherwise, something will happen to Xiaoyu.

Fourth, the small fish is weak, be careful not to let it get sick, if you are sick, you should immediately **, it is best to use special medicine.

When the small fish is large enough, they can be raised like big fish.

I used to raise a lot of fish, and the focus was on paying attention to the changes in water quality, and if I fed fish insects and daphnia with bait, they would grow quickly. I hope your fish will grow up soon, hehe!

At least it has to grow to the point where the mouth of a big fish can't eat it.

When the small fish are one month old and can be raised with the big fish, when the small fish and the big fish are raised together, if there is a fight, it is recommended to raise them separately or separate them with glass plates. When feeding, you need to feed the big fish with large pellets first, and then feed the small fish with small pellets to prevent the occurrence of food grabbing.

Usually when the small fish have been raised for a month, they can be raised together with the big fish. In other words, when a small fish grows to one-third the size of a large fish, it is also decided according to the actual situation of the growth of the small fish.

When you start raising small fish with large fish, carefully observe whether there are any bites between the big fish and the small fish. If this happens, it is recommended that they be kept separately or separated by glass plates to let them get used to first.

Small fish and big fish together, you need to pay special attention to the method of feeding, first feed the big fish with large particles of feed, and wait for the big fish to eat, in the use of fine particles of feed to feed the small fish, you can avoid the phenomenon of grabbing food.

<> newborn baby fish take about a year to grow. To raise small fish, we should first pay attention to changing the water, and at the same time, we should feed it regularly and quantitatively, the temperature should be 1-2 higher than that of the adult fish, and the oxygen should be increased regularly. The water is basically changed once every three to five days, and the feeding should be selected according to the different eating habits of the fish.

The temperature should be kept constant to avoid large fluctuations. It is best to turn on the aeration 24 hours a day, so as to ensure that the dissolved oxygen of the water body is sufficient.

The reproductive cycle of different fish is different, taking guppy as an example, it can give birth to small fish once a month, but Arowana can only give birth twice a year, and swallow fish can only reproduce three times in two months, but the interval time is not fixed. Goldfish, on the other hand, reproduce quickly, giving birth once every two to three weeks, while koi fish can only give birth once a year. The premise of fish reproduction is sexual maturity and at the same time entering the breeding period, and the male and female fish will spawn and fertilize after pairing.

There are many types of fish, and the reproductive cycle of different species of fish is also different. For example, guppies can breed once a month, Arowana generally breeds twice a year, and there is a gap of three to four months between the two reproductions, and swallow fish can reproduce three times in two months, but there is no rule in time. In cold-water fish, goldfish generally reproduce once every two to three weeks, while koi fish can only reproduce once a year.

1. Individual maturity: Fish, like other animals, will only become sexually mature after reaching a certain age, and depending on the species, this time difference is also very large, like guppies will generally mature in 3-6 months, while large fish, such as Arowana, will take 4-8 years. In addition, the timing of sexual maturity of male and female fish may not be the same for the same species.

2. Broodstock pairing: After the fish are sexually mature, in order for them to reproduce, they need to be paired with broodstock. In general, as long as the fish are stocked according to a certain ratio of male and female, they can complete the pairing on their own, and the paired fish will generally swim and feed together.

In order to prevent them from being harmed during the breeding season, it is best to keep them in isolation to avoid eating the eggs.

3. Reproduction and spawning: Most fish are fertilized in vitro, so you need to plant a little aquatic grass in the tank so that the eggs can be attached to it. The breeding time is generally in the evening and night, and after spawning, except for some fish with egg-protecting behavior, it is best to fish out the others to avoid eating the eggs by mistake.

Most of the small tropical fish that are domesticated are usually born once a month, and they only take about 28 days from fertilization to production. However, viviparous tropical fish generally do not reproduce until they are 3 or 4 months old, while small oviparous tropical fish take months to sexual maturity ranging from 40 days to several years.

Many friends who raise tropical fish should want to know how often tropical fish give birth to small fish. In fact, the breeding cycle of most domestic small tropical fish is very short, generally once a month, and they are generally only about 28 days from fertilization to production.

Most viviparous tropical fish can start reproducing when they are 3 or 4 months old, and can produce 10 to 20 fry at a time, but fish with late sexual maturity usually have a higher production rate than fish with earlier sexual maturity.

Oviparous small fish generally take about 3 to 6 months to reach sexual maturity, and individual small fish species can reproduce the next generation in about 40 to 50 days. However, some large oviparous fish, such as goldfish and arowana, generally take a year or even several years before they can become sexually mature and start reproducing.