How to raise small fish?

Because angelfish are relatively large ornamental fish, the feeding tank must be large. Personally, if you want to raise it well, you need to use a cylinder with a height of 1 m or more. I am 1 m, and I put 5 pairs of adult fish in the tank. Only in this way can fish grow well! The best is1.2m.. If you use a semi-naked vat or straw vat, you'd better use big grass. This can make the fish grow better.

Second, the preparation of water

Speaking of water, some people say that a few days' sleep is enough. In fact, when trapped in water, a transition device should be used to make the trapped water clear and transparent, which is suitable for the life of angelfish. Because there is sediment after the tap water is trapped for a few days, I don't know what it is, and I don't know if it is harmful to fish, so I use the transition device to transition these things out and the water will naturally become clear and transparent.

Water is usually trapped for seven days. When you are trapped in the water, the water temperature rises to 32 degrees the next day, which is called keeping raw water cooked. Adjust the water temperature back to 26 degrees on the sixth day, and you can buy fish on the seventh day! If you are trapped in water, add 500 grams of salt before putting the fish. By the way, the water temperature for raising angelfish is 26 degrees. Colorful to 28 degrees is better.

Third, how to buy fish

When it comes to how to buy fish, this may be a problem that everyone cares about. But even if you are an expert, you may be cheated by the current JS. Now some JS like to kill people who think they are experts. This industry is called "slaughter". Everyone must take preventive measures.

Well, you may not be happy to say this! But then I still want to say it! What should I do next time you are killed by JS?

1, when you buy fish.

When I say look, I don't mean look at my eyes to see if I'm sick, as those "experts" who read books online say. I'm talking about the appearance of fish, whether it's colorful or immortal, it's old fish, not just eyes! Depends on the model. If it is colorful, it depends on its cake shape. If it is a small fish of 2 ~ 3 cm, its cake should be a little oval. If they are too round, JS may have starved them to death. So it must be an old fish! The same is true of immortals. If you see that the upper wing is out of proportion to the lower wing, it means that the fish has been fished out and can't grow up and reproduce. So there are many such examples, so you should observe them more!

2. Buy fish to see the price.

I don't know about other places. In the fish markets of Shenyang and Fushun in the northeast, most of the fish sellers buy fish in Anshan. When you come back, double or triple the price of fish. Just say immortal! The best immortal (adult fish) in Anshan is only 10 yuan, and Fushun is 20 yuan! Stop haggling! Small colorful fry Anshan is the cheapest, 4 yuan, Fushun grew up, 2 ~ 3 cm is not sold. So if you buy a pair of small colorful fish for 20 yuan in Shenyang or Fushun, it must be either an old fish or a sick fish.

3. Buying fish depends on the variety.

When buying fish, we should only look at the species of fish carefully. What we are talking about here is mainly color. Because some JS did not master the technology of applying pesticide to fish, many interesting species were produced. For example, if you paint Marlboro with brilliant red pigment, you will get pigeon red (because it is a medicine for coloring pigeon red, the characteristic spots of pigeon red on your head are printed). Lan Yu's red medicine and Tian Zi blue shrimp red. As a result, the second half of the fish is red, so it is sold as the best field blue. As for small fish, there is no color. If the small fish are colorful, it must be drugged. This common sense may be known to everyone!

4. Look for symptoms when buying fish.

This is a cliche, and there are many articles on the internet, so I won't go into details! But one thing, don't just look at the fins. Some js give medicine to the fish before going on the market, which makes the fins of the fish open, which is very spiritual. See if the fish likes swimming, pat the tank wall and see how the fish behaves after being electrocuted.

Ok, after reading the article about buying fish, everyone can buy their favorite fish! Let's talk about how to feed them first

Fourth, feeding

New fish have to go through the water when they go home, that is, put the fish and plastic bags in the fish tank 1 hour when they go home. You'd better add some salt to the plastic bag before putting it in the fish tank. Then put the fish in the jar by hand, not the water in the bag.

If you want to breed, you'd better buy a month-old small fish. If it is1.2m, put 24 fish in, because you should choose the best fish as the parent fish for breeding. So I want to buy 24 fish, because some are not big, some are dead, and there are only about 10 left when I grow up, and some are not necessarily females, and some are males. This makes 24 the bottom line. If your tank is big, a little more is not bad!

Now talk about how to feed the fish!

I advocate feeding nematodes with red worms and blood worms. In particular, cultured fish cannot use nematodes. Also, some fish friends use hamburgers, which are also very good. I just don't use them because I'm too lazy to cook. As long as you feed it twice a day and once in the morning, there should be some bait left in the jar that can be eaten until noon. Feed it once at night, and it is advisable to eat it within 1 hour! Change the water once a night (1 meter tank can change two pots of water! The replaced water will only be trapped for one day! ), you can raise it very well! The most important thing is not to feed finished fish food such as patches and miscellaneous grains. I don't know the rest. I have a jar that has been used for half a year. The fish didn't die, just didn't grow.

Five, the reproduction method of angelfish

Before we talk about breeding, let's talk about how to distinguish the sex of fish.

At first glance, the tall one is the male fish.

Second, look at the fins. The long fish is male and the short fish is female.

Third, look at the figure, the big fish is male and the small fish is female.

Fourth, look at the belly, the belly of adult fish, the big one is that the female fish has not changed, but the male fish (look before feeding the fish, but some good male fish have a little bulging belly! But not as obvious as the female fish! )。

And look at the genitals. Before breeding, both male and female fish will stick out their fallopian tubes and vas deferens. The length of oviduct of female fish is about 65438±0 ~ 2MM. The diameter is about1mm. The male fish is short and sharp. Actually, the last sentence is nonsense. If you can see the fallopian tubes and vas deferens, you can have children. Who else doesn't know which is the female and which is the male?

1, preparation before breeding:

Prepare a breeding tank with a water level of 45 * 45 * 45 cm (the water level of wild immortals is 60*35*50 cm to 55 cm, because the wild ones are bigger than the domestic ones. ), just use the water that has been trapped for 7 days, but the water temperature must be the same as that in the tank. Add 50 grams of salt before adding the parent fish. Use a piece of 26 * 13 ground glass or frosted glass (that is, ordinary glass is hit with a grinding wheel), but there is no glass! It can form an angle of 19~30 degrees with the cylinder wall, and I use about 25 degrees (in fact, angel fish can make any angle, but 19 ~ 30 degrees is better! )。 Light, just use natural light! It is best to put the breeding box in the north to avoid sunlight. The best water temperature for culture is 26℃ (28℃ for red-eye diamond, Moxian and Jinding glass fairy), and then adjust the water temperature after releasing the fish. )。

2. Management of parent fish in breeding:

After the parent fish enters the tank, it will start to chew the board. If it is a parent fish that has laid the umbilical cord (the umbilical cord means that the female fish and the male fish extend out of the fallopian tube and vas deferens), they will lay eggs in a day or two. Parent fish without navel will have to wait slowly Parent fish should be fed during the breeding period. There is an article on the Internet that it is wrong for parent fish not to eat or drink during the breeding period. But don't feed live red worms, because live red worms will destroy fertilized eggs. It is best to feed blood worms or frozen red worms.

You can leave the parent fish after spawning, but if the parent fish doesn't protect the eggs (I mean, the parent fish doesn't eat unfertilized eggs, dead eggs and moldy eggs), then put the parent fish back in the aquarium. At this time, you can only replace the parent fish. You have to use tweezers and other tools to clean out unfertilized eggs, dead eggs and moldy eggs. Here, I have to say that online articles about raising immortals and fish friends in life all say that you should put an air pump or a water demon when raising immortals. Here, I don't recommend joining the water goblin. Because it will suck in some newly hatched small fish. As for the air pump, whether it is added or not depends on your hobby and mood. Although the air pump is good for hatching, the small fish obtained in that way are highly dependent on the air pump. Once the power goes out, everything is gone. Without an air pump, the fish you get is the healthiest. It is normal for eggs to hatch into small fish in about three and a half days, and some will last for four days. A fish friend said that his little fish would come out in three days, which is impossible! I must have forgotten the time. If you don't believe me, stick a small note on the fish tank and record the time of spawning and hatching, and you will know how long it took. It doesn't matter if a small fish or fertilized egg falls to the bottom of the tank.

3. In the small fish's tube

Small fish can't swim for a long time after hatching. When you see the small fish start swimming and there is no yolk under the abdomen, you should feed the backwater, that is, pour the backwater into the fish. It doesn't matter if there is no backwater. I have a method that I just thought of recently, and it was later verified in a fairy's nest. When small fish start swimming, they are fed with egg yolk water. My method of making egg yolk water is also different from others. Some people say that egg yolk is crushed in water, but the egg yolk water obtained in that way is too thick for small fish to eat well. I put the backwater net (240 mesh gauze) in the water, then crushed the egg yolk in the net and shook it back and forth. Look, the yolk is leaking into the water. This kind of egg yolk water is what small fish like to eat because its concentration is just right. ), you can give more egg yolk water, it's okay. After adding egg yolk water, add some red worms. You will ask how to eat red worms when the fish is so small. These red worms are not for small fish, but for them to lay eggs and give birth to small red worms. In this way, your tank becomes an ecological tank. Small fish can only eat egg yolk water now, and they can eat red worms in a day or two, and they can eat red worms in a week when they are the size of guppy larvae. You can eat anything after eating red worms! Hee hee, isn't that good? Its principle is that too much egg yolk water will stink. Small fish will die, which is why fish friends don't recommend using egg yolk water. But with this method, there is no such problem. Red worms will eat egg yolk water with small fish and will soon breed red worms. The breeding time of red worms is just the time when small fish grow up to eat red worms. It's time for my little fish to eat red worms, and the mortality rate is much smaller than before! Note that only a small amount of water can be changed within 1 month from spawning, and only one twentieth of the water can be changed every five days. Don't change the water at most, or the little fish will be in big trouble! You can change one-tenth of the water every day before spawning, which helps to maintain water quality and spawn parent fish. Also, if you use egg yolk water, it is best to add an air pump while using egg yolk water to prevent hypoxia due to many organisms. Finally, I wish you all success in reproduction!

Well, this is my little experience. I write this, just hope that everyone will take fewer detours, please communicate more!