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How to raise goldfish without hypoxia? Summary of precautions for keeping goldfish at home

Many people at home like to raise goldfish, which can bring vitality and vitality to the family. Many people want to know how to raise goldfish in the end so as not to die of hypoxia. Today Xiaobian will show you that goldfish will not die.

The way to keep goldfish alive

1: To raise a good fish, you must learn to buy a good one:

(1) Conditions for excellent goldfish

Beautiful shape: the body is symmetrical, the body is short, the tail fin is broad, and the breed characteristics are obvious;

Color beauty: the body color is rich, bright and beautiful, which means it has a distinct and beautiful feeling;

Sports beauty: steady and elegant, beautiful appearance.

(2) How to choose healthy goldfish

Healthy fish swim, forage and fight for food in the middle and lower layers of the water body. They swim in a natural and leisurely manner and are in groups with other fish. Their tail fins are clear, transparent and elegant. The bottom, floating head and swimming are struggling, with trauma, white hair and white spots. The caudal fin is thick, turbid, with serious bloodshot, turbid eyes, dim body color and single person. The sick fish cannot be purchased.

There is a technology accumulation process for just learning how to raise fish. It's not necessary to choose the perfect fish, but to buy the cheap fish. Of course, it must not be ignored to buy the healthy fish.

2: Before you raise goldfish, you should prepare a tank that is not too small. It depends on the size and quantity of goldfish you raise. Pay attention to the density of fish. First time breeders often buy the fish they like when they see it. They seldom care how many fish can be raised in the tank. Even if they ask for the opinions of fishmongers for the purpose of profit, can they say that you can buy less? In my experience, at least 3 liters of water should be guaranteed to raise 1 cm long fish. If your tank holds 100 liters of water, then you can feed 3 10 cm fish, 5-6 cm fish (its body shape is relatively narrow Small) 8. In winter, the temperature is low and the feeding is little. It can be properly dense. In a larger space, goldfish are more active and bright in color. Too high density is easy to lead to water hypoxia, water quality deterioration, resulting in goldfish death.

3: The new water to be used for goldfish should be stored for one or two days first, which is called drying water. On the one hand, the purpose is to remove some chlorine from the water, and on the other hand, to make the temperature of the new water close to that of the old water.

4: Buy a good goldfish must be oxygenated to avoid suffocation on the way home. When the goldfish get home, don't rush into the tank. First put the plastic bag into the tank for 10 to 20 minutes and then open it. Let the water in the tank flow back into the bag several times. Gradually mix with the original water in the bag, so that the fish can gradually adapt to the new 'home' water temperature and quality. If there is light, turn off the light. In the dark, the fish are quiet and not easy to be frightened.

5: The temperature of the water cannot be changed dramatically. Goldfish can survive in a wide range of temperature. In winter, they can still maintain their lives under the ice. In hot days, they can live normally as long as they are not exposed to the sun. However, if the temperature changes dramatically, they will cause illness or death. When buying fish, you should pay attention to the water temperature of aquarium and your aquarium. The deviation should not be too large. Generally, it is allowed within 4 degrees.

6: Do not change too much water at one time, or the water quality will change suddenly, which will lead to the occurrence of water quality discomfort of goldfish. Goldfish have adapted to the original water quality of life, water quality suddenly changed, goldfish will not be able to adapt to disease, or even sudden death.

7: How to feed. It is better to eat once or twice a day and within 5 to 10 minutes. Feed less in rainy days, not at night. Fish need to consume more oxygen when digesting food. In rainy days and at night, the air pressure is low, and the oxygen dissolved in water is also low. In this way, feeding fish may lead to serious lack of oxygen in water and death of fish. Most of the dead fish occur at night, which is the reason. According to the color of fish dung, we can distinguish the situation of goldfish's hungry and saturated digestion and absorption: if the fish dung is green, brown or black, it means that the fish body is suitable for feeding and has good absorption. If the feces are white, it means that the fish are overfed.

8: The food must be clean. Feeding unclean fish food can easily lead to fish diseases. Although goldfish like live food the most, goldfish fed live food grow faster. However, live food grows in the polluted water environment and is easy to be infected with bacteria. Therefore, it is necessary to be careful when putting live food.

How to select feed:

Buy brand-name frozen fresh food produced by professional companies, such as red worm, spring shrimp, etc., supplemented with beans and vegetables to maintain comprehensive nutrition. Breadfruit is also a favorite live food of goldfish. It has high nutritional value and can also be fed properly.

9: Keep the water clean. Goldfish eat a lot of food, consume a lot of oxygen and discharge a lot of waste to pollute the water and breed bacteria. In order to keep the water clean, a filter should be installed, and one tenth of the old water should be replaced every day while removing the debris and residual bait from the bottom of the cylinder, especially in summer. It's better to use the filter with aeration design, so that the filtration and aeration can be carried out at the same time, so that the water body can be purified and supplemented with oxygen.

10: Do not bring grease into water. Oil will float on the water surface to isolate the air, so that the oxygen in the water can not be supplemented, which will lead to the death of goldfish due to lack of oxygen. If you eat meat or apply hand cream on your hands, the grease will be brought into the water, which should be carefully avoided.

11: It's best to start with the Wenyu goldfish. The goldfish have strong foraging ability, strong physique, and less body injury. It can reduce the loss to raise valuable fish after accumulating experience.

Precautions for keeping goldfish

Feeding water quality

Goldfish feeding predecessors have long had the experience of "fish first water", which shows that the quality of water will directly affect the normal growth and development of goldfish. The purpose of water exchange is to clean the water, regulate the water temperature and increase the oxygen in the water, so as to stimulate the growth and development of goldfish.

If you want to raise goldfish well, you must have a preliminary understanding of the fish water:

Fresh water

It refers to the fresh tap water, which is the most ideal water for fish farming. However, it should be noted that the water temperature is often quite different from the water temperature in the fish pond (tank), so it needs to be regulated (in some areas, the tap water with more chlorine gas also needs to be dechlorinated).


It is the dirty water with feces and dirt at the bottom of the fish pond (tank). Including the feed water that has not been changed for a long time in the pool (tank). It has a great influence on the growth of fish.

Old water

It is a general term for the clean and tender green, green, old green or green brown water in the fish pond (tank). Among them, green water is the best. There are more green algae floating in the old water. They are also good auxiliary feed for goldfish. This kind of water has less decomposed organic matter and more dissolved oxygen. Fish are often raised in tender green and clean old water. The fish have the most vigorous appetite, strong body, bright color and rapid development.

Water return

If it is found that the old green water in the original pool (tank) suddenly becomes clear water, and many green algae settle at the bottom of the tank, this phenomenon is called back to clear water. This kind of water is easy to cause fish diseases and needs to be replaced completely.

Water change method

(1) Under the normal condition of water change, especially in the hot summer, as long as the feces and dirt at the bottom of the fish pond (tank) are combined with the old water every day, gently suck out 1 / 10-1 / 5 with the rubber tube, remove the dust and the feces on the water surface, and then slowly inject the isothermal new water along the pool (tank) wall to keep the water clean. This method of water exchange is not easy to damage the fish body, it is simple and safe, and it is most suitable for domestic fish tank or small pool fish keeper.

(2) Part of the water exchange method is mainly carried out in two cases. In one case, in the hot summer and early autumn, the feed water in the fish pond (tank) has not been changed for several days, but the color of the water turns green very fast (due to the low feed quantity), and the water quality is still clean. In order to prevent the goldfish from scalding their tails, all the goldfish in the pond (tank) can be fished out, and then the water in the pond (tank) can be turned into a spiral shape, and the dirt in the center of the pond (tank) and The aged water is sucked 1 / 3-1 / 2 by rubber tube, then injected with new water of equal temperature and quantity, and then the goldfish are fished into the original pool (tank) for feeding.

Another situation is that the water in the pool (tank) has not been changed for a few days, and the water color is still good. However, emergency measures must be taken in case of floating head due to excessive feeding on that day. The way to change water is the same as above.

If it's a big fish pond in the fishing ground, you don't need to take out the goldfish. Instead, use the folding screen to keep the fish on one side. Then use the screen to gently rotate the water in the pond for tens of seconds. When the water is still for a while, open the drain gate to slowly drain the water or use the straw to suck out the excess fish, excrement and water in the center of the pond (tank), or use the fishing net bag to take out the remaining fish from the center, and then put 1 / 4-1 / 2 of them The method is usually used in the fish farm or in the family when the amount of food is too much.

(3) Thorough water change this kind of water change is often a kind of water change method combined with turning pool (tank), selecting young fish or adult fish at the same time. It is often used when the water quality is seriously deteriorated or the moss is too long and the fish is too dense. There are two methods:

1. If there is no free pool, all the goldfish must be fished in the basin or the cage placed in the adjacent pool water for temporary feeding, and the aerator shall be added in the basin or cage to increase oxygen. Then, brush off the moss on the original pool wall, wash it thoroughly, refill it with new isothermal water, and let it stand for a while until the water temperature is equal, then fish into the original pool (tank).

2. If there is free pool and new water, the goldfish can be moved into new water for feeding as long as all goldfish are fished into the basin or cage, and selected and treated separately. For the sub pool of the sub pool, the goldfish can be moved into new water after the water temperature of the sub pool is equal. Special attention should be paid to the water temperature in this water change method. It is better to choose a sunny day before 9:00 in the morning. However, this method is generally only suitable for adult fish or larger juveniles, and should not be used for juveniles. If conditions permit, it is better to fill the standby tank (tank) with water, and then fish into the standby tank (tank) directly. In this way, the water temperature changes little, and the fish are easy to adapt to the new environment, so that the fish are not squeezed in the basin or cage. This kind of water exchange method is generally carried out once every half month in spring and autumn. In summer, when the weather is heavy and the water temperature is over 28 ℃, the water color is very easy to thicken and the water quality is very easy to turbid. Generally, the water should be changed once every 4-7 days. In winter, the water temperature drops to about 4 ℃, goldfish are slow in activity, appetite is reduced, water quality is not easy to deteriorate, and generally not all water is changed without special circumstances.

It should be noted that due to the differences in density, body size, feed, feeding habits and water quality maintenance equipment, the method of water change should not be too dogmatic. It should be adjusted appropriately according to the water quality and the state of fish, which requires long-term experience in fish farming.

Growth and reproduction of goldfish

Generally speaking, the female's belly is larger during spawning, while the male's belly has no change. However, it is not difficult to observe carefully that there are several small white spots on the bone spines in front of the left and right front fins of the male, especially during the spawning period, while the female absolutely does not.

In addition, during the spawning period, the male always chases after and bites the tail of the female. Now it's time to lay eggs. This pair of fish should be placed in a fish tank alone, with a little more water grass in the tank, so that the spawned fish eggs can adhere to the water grass, otherwise, the eggs will sink to the bottom of the water and be eaten by the fish. For the time being, the female after spawning should not be mixed with any male fish, so that it can have a good rest and care to protect it Female fish.

Place the aquatic plants with milk white eggs on the ones with fish water