To raise a good fish, you must first learn to buy a good fish.
For beginners, the first thing is to buy healthy fish. So how to choose a healthy goldfish?
Healthy fish swim in the middle and lower water, foraging for food and competing for food. They swim naturally, leisurely and live in groups, with clear, transparent and elegant tail fins. Fish that sink to the bottom, float their heads, stand upside down or swim in a struggling state, fish with trauma, desquamation, long white hair and white spots, thick and turbid tail fins, severe bloodshot eyes and dull eyes, and live alone are all sick fish, no matter how much they like them.
Just learning to raise fish has a process of skill accumulation. You don't have to choose perfect fish, but buy cheap fish and healthy fish, which must not be ignored. Especially in winter and early spring, you should choose goldfish carefully, because there are many sick fish at this time.
2. Before keeping goldfish, you should prepare a fish tank that is not too small, mainly depending on the size and quantity of goldfish you keep. Also pay attention to the density of fish. Novices often buy the fish they like when they see it, and rarely consider how many fish they can keep in the tank. Even if they ask the fishmonger for advice, can they say that they want you to buy less for the benefit? In my experience, it takes at least 3 liters of water to raise fish with a length of 1 cm. If your fish tank is filled with 100 liter of water, you can feed 3-4 fish with 10 cm and 8 fish with 5-6 cm. On this basis, the winter temperature is low, feeding is less, and more fish can be raised appropriately. The weather is hot, the water temperature is high, the dissolved oxygen in the water is low, and the water is easy to rot, so we must not raise more. Goldfish are more active in a larger space, and their body color is more vivid. Excessive density of water will lead to hypoxia and deterioration of water quality, which will lead to illness and death of goldfish. Remember not to be confused by the crowded fish tanks in the store.
Third, the fresh water of goldfish should be stored for one or two days, which is called "trapped water". On the one hand, it is to remove chlorine from water, and on the other hand, it is to make the temperature of new water and old water as close as possible.
Fourth, buy goldfish must be oxygenated to avoid being suffocated on the way home. The goldfish is home, don't rush into the tank. Put the plastic bag containing fish in the fish tank 10 to 20 minutes before opening it, so that the water in the tank can be poured into the bag several times and gradually mixed with the raw water, so that the fish can gradually adapt to the water temperature and quality of the new home. If there is a light, turn it off. In the dark, fish are quiet and not easily frightened.
Five can't significantly change the water temperature. Goldfish can survive in a wide temperature range, and can still maintain life under ice in winter. As long as they are not exposed to the hot sun, they can live normally on a hot day. However, if the temperature changes sharply, they will get sick or die. When buying fish, pay attention to the water temperature of the aquarium and the water temperature of your own aquarium. The deviation should not be too big, generally within 4 degrees is allowed.
Sixth, you can't change too much water at a time, otherwise the water quality will suddenly change, which will lead to the discomfort of goldfish. Goldfish has adapted to the original water quality. If the water quality changes suddenly, goldfish will get sick or even die suddenly.
How to feed. Goldfish are kept at home for viewing, so there is no need to feed more fish food. Feed it once or twice a day and eat it within 5 ~ 10 minutes each time. Feed less in rainy days and not at night. Because fish need to consume more oxygen when digesting food, the air pressure is low in rainy days and at night, and the dissolved oxygen in the water is also low, so feeding fish may lead to serious hypoxia in the water and kill fish. That's why most dead fish happen at night.
According to the color of fish manure, we can distinguish the saturated digestion and absorption of goldfish hunger: if the fish manure is green, brown or black, it means that the fish is suitable for feeding and absorbs well. If the fish manure is white, it means that the fish is full, and the feeding amount should be reduced.
Eight ingredients must be clean. Feeding unclean fish food can easily lead to fish diseases. Although goldfish like live food best, goldfish grow faster when fed live food, but live food grows in polluted water environment and is easy to be infected with germs, so be careful when feeding live food. It is recommended to buy brand-name frozen fresh foods produced by professional companies, such as red worms and bumper shrimp, supplemented by beans and vegetables, to maintain comprehensive nutrition. Breadform is also a favorite living food for goldfish, which has high nutritional value and can also be properly fed.
Keep the water clean. Goldfish eat a lot, consume a lot of oxygen, and discharge a lot of waste to pollute water and breed germs. In order to keep the water clean, it is necessary to install a filter, remove the wrinkles and residual bait at the bottom of the pool every day, and replace one tenth of the old water, especially in summer. It is best to use filtration with aeration design, so that filtration and aeration can be carried out at the same time, which not only purifies the water body but also supplements oxygen.
Do not bring oil into the water. Oil pollution will float on the water surface to isolate the air, so that the oxygen in the water can not be replenished, leading to the death of goldfish due to lack of oxygen. Eating meat or applying hand cream on your hands will bring oil into the water and should be carefully avoided.
It's best to start with wenyu goldfish. The cultured goldfish have strong foraging ability and strong physique, and are not easily injured by accidents. Raising precious fish after accumulating experience can reduce losses.
Do you raise fish in Xingang? If it is a new tank, has your fish tank been treated? Did you open the cylinder? Before you come back from buying fish, scrub the fish tank with high-concentration potassium permanganate, wash it with clear water, soak it in low-concentration potassium permanganate for two days, wash it with clear water, then fill the fish tank with fresh water, let it stand for two days, then open the filter, add one thousandth of salt, and add nitrifying bacteria if possible. Forget it. After 24 hours, put four or five small fish in the tank, and after three days, you can put your beloved fish in. This is the opening of the water tank.
Scavengers are particularly adaptable and have low requirements for water, so they are relatively easy to raise. However, they are sensitive to drugs, especially salt. Did you put salt in the water? If that's the case, it's possible that he died from an overdose of salt, or that he overdosed on other drugs.
Let me tell you the secret of keeping goldfish at home: this is a summary of my experience in keeping goldfish 10 years, not a long story downloaded from the internet. It may be helpful for you to raise goldfish in the future.
1, Feeding: Feeding is full of nutritious animal feed and white sesame seeds. Animal feed, such as Daphnia, earthworm, Tenebrio molitor, caterpillar, dust mite, etc. The main feed is earthworm and white sesame. Both red earthworms and black earthworms can be fed. You can feed raw white sesame seeds. White sesame seeds are easy to buy. Goldfish love to eat, easy to digest, and not easy to pollute the water. Don't feed inferior goldfish feed. Because this kind of feed has too much starch, poor nutrition, difficult digestion and easy pollution of water quality, goldfish will grow slowly and get sick easily after eating malnutrition. Goldfish will not die as long as they eat digestible food. When to feed, usually once a day in the morning and evening, it is not advisable to feed more until it is eaten up. Otherwise it will pollute the water body.
2, lighting: it is best to put the fish tank in a sunny place 1-2 hours. In this way, ultraviolet rays in sunlight are used for sterilization. Play a role in preventing diseases. This can reduce diseases. Try to prevent fish diseases, supplemented by drug treatment. At the same time, due to photosynthesis, the color of fish is more bright and beautiful.
3. Change water: Changing water frequently can increase dissolved oxygen in water. When changing water, you can only change one-third to one-quarter, and you can't change a lot at once. The fish can't adapt. It is very important to keep the water quality of the aquarium clear. There is enough dissolved oxygen in the water to make fish grow and grow fast. Otherwise it will stop growing or even die. When to change the water is inconclusive, but it depends on the water quality. If the water quality is turbid, change it more or less.
4. Stocking density: rectangular aquariums in China are not suitable for raising more, but it is not suitable for raising less. For example, in a container with a length of 40 cm, a width of 25 cm and a height of 30 cm, you can raise 6 to 8 small goldfish with a length of 5 to 7 cm. For example, a round glass jar with a diameter of 26 cm and a height of 13 cm can raise 4 ~ 6 small goldfish with a diameter of 4 ~ 6 cm. Adult fish with a body length of more than 8 cm should not be kept in small glass tanks, but in large glass tanks or ceramic tanks, and equipped with small oxygenators for standby to prevent hypoxia. These stocking densities are only reference figures, but also depend on the level of water temperature, the strength of fish and the quality of water, which cannot be determined mechanically. Generally speaking, there are large fish and few animals. Raise more in winter and less in summer; You can raise more when the water temperature is low, and raise less when the water temperature is high. Domestic goldfish, if you master the above points, will certainly make goldfish healthy and lively, colorful, swimming around in the water, loved by people, so that you can never get tired of watching it and have fun. I am sure I can raise it. I wish you success!
Here are some methods that suit you.
First, choose fish, with even head shape and natural swimming.
Second, choose materials, not colored feed.
Third, the water should not be changed frequently, and it is best to change it once every half month.
Generally, there are more spots or white spots. Just add some povidone iodine to the water.
To raise palace goldfish, the fish tank should be placed in a ventilated, sunny place near the window. Attention should be paid to stocking density and reasonable arrangement should be made according to the size of containers. It is better to raise more than less. Because the indoor air circulation is not good, raising more water is easy to be turbid, which can easily lead to goldfish dying of lack of oxygen. If you have a pump, you can raise more. If the goldfish is found to have a floating head, it is necessary to turn on the air pump for oxygenation, especially at night.
Live fish worms are the most ideal bait for family fish farming, and the water quality is not easy to deteriorate. Dried fish worms and synthetic pellet feed can also be used. There are live fish and worms on the market now, but it is also very troublesome to buy them every day. For dried fish worms sold in the market, choose fresh and loose particles to feed the fish, and don't buy old and moldy dried fish worms to feed them. It is best to use full-price feed with complete nutrients for artificial pellet feed, which is sold in the market.
In order to keep the water pure, the feeding amount should be strictly timed and quantified. Usually, it is advisable to feed 1 2 times a day, and each feeding amount should be eaten within half an hour. Don't feed too much bait. Feeding too much has two disadvantages: first, the fish is full, the metabolic level is improved, and the oxygen consumption is increased, which is easy to cause goldfish to die of hypoxia and suffocation; Second, the bait is left, which is easy to rot and ferment, making the water quality worse and causing hypoxia. In fact, goldfish are hungry, and there will be no problem if they are not fed for a week or two.
It is very important to keep the water pure when keeping goldfish. It is necessary to use latex tube to remove the accumulated slag regularly, clean up the feces and residual bait at the bottom of the aquarium together with turbid water, and then slowly replenish the fresh water that has been placed for one day. If water plants are found floating or rockeries are knocked down during operation, they should be restored to their original state in time.
The longer the fish is raised, the more sediment will be deposited. Although it is removed every day, it cannot be completely removed. If the increase of sediment affects the clarity of the fish tank, it is necessary to completely change the water to wash the fish tank, so as to keep the water pure, easy to watch and maintain a good living environment for goldfish.
Rectangular aquariums used by ordinary families are small in size and should not be kept more, but less. For example, in a container with a length of 40 cm, a width of 25 cm and a height of 30 cm, six to eight goldfish with a length of 5 cm to 7 cm can be raised. Adult fish with a body length of more than 8 cm should not be kept in small glass tanks, but in luxurious large glass tanks or ceramic tanks, and equipped with small oxygenators for standby to prevent hypoxia. The above stocking density is for reference only, but also depends on water temperature, fish size and water quality. This cannot be done mechanically. Generally speaking, if the fish is big, it is necessary to raise less; You can raise more in winter and less in summer; You can raise more when the water temperature is low, and raise less when the water temperature is high.
Too much water? This is the answer found there! Ha ha! I have been raising fish since primary school. Almost 20 years. Generally speaking, goldfish are not easy to raise. Before raising fish, you should prepare your fish tank, not too deep, with a width or length. Goldfish love to float, so you should also prepare an oxygen bottle, preferably for 24 hours! If you can, buy a filter (you don't need to open it 24 hours, you can buy a refrigerator delay device! Water is very important. Want to bask in the sun for a day, goldfish Longjing is easy to raise. It is recommended to raise it first! When buying fish, choose those who are strong, swim in the middle of the basin and lick their tails! A symmetrical body depends on whether the fish's eyes, gills, fins and scales are complete, symmetrical and complete. Whether they are sick or not. Don't put the fish you just bought into the water in the fish tank immediately, put it in a plastic bag and put it in when the temperature is close. Don't put the fish tank in too strong light, or it will grow green mud. Don't change water too often, goldfish like old water! Put some salt in the water, be careful! Don't feed the fish too full, feed them frequently, feed them less, and eat fresh bait! Observe carefully every day, even if you are sick, even if you are treated! You must master your own experience! Wish you success!