Why do fish survive long in a pond but not in a tank?

Fish can survive for a long time in a pond but not long in a fish tank mainly due to several reasons:

1.Water quality differences: There is a big difference between the water quality in the pond and the water quality in the fish tank.

Ponds are usually large in water bodies and are rich in microorganisms and ecosystems in the natural environment, which can maintain relatively stable water quality. The water body in the fish tank is smaller, and the water quality is easily disturbed by the keeper, and if the water quality is not properly managed, it can easily lead to the deterioration of the water quality and affect the health of the fish.

2.Oxygen content: Oxygen levels in fish tanks are usually lower than in ponds. Because the water body is small, the oxygen content in the fish tank is limited, if the breeder does not provide aeration equipment or the power of the aeration equipment is too small, it is easy to cause the fish to die of lack of oxygen.

3.Nutrient supply: The water in the pond is rich in nutrients such as oxygen, organic matter, microorganisms, etc., which are very important for the survival and growth of fish.

The water body in the fish tank is relatively small and the nutrients are limited, and if the keeper does not provide the appropriate nutrients, such as food, oxygenators, microbial preparations, etc., it is easy to cause poor growth or illness of the fish.

4.Environmental changes: The environment in the fish tank is relatively closed, and the temperature and water quality are easily affected by external influences and fluctuate. The environment in the pond is relatively open, and the climate and light in the natural environment change slowly, which can provide a relatively stable living environment for the fish.

Therefore, for fish to survive in the tank for a long time, keepers need to carefully manage water quality, provide sufficient oxygen, reasonably control the feeding density, provide appropriate nutrients, and maintain a stable environment.

Because the fish can survive for a long time in the pond, because there are nutrients and fertilizers in the pond, which is suitable for long-term survival in the pond, and it does not live long in the fish tank, because there is a lack of oxygen in the fish tank, there are not many nutrients in the fish pond, and in the case of lack of oxygen, it is not long to live in the fish tank.

Fish can survive in the pond for a long time in the bathtub, in fact, Yu Zhigang, Li Xue raised some ornamental fish. So the water is exceptionally clear. He is used to this environment, and the fish you fish out of the pond, he is not at all adapted to this environment, so he also has insufficient oxygen, so he will die.

That's the fish tank is not in good condition. A lot of fish can also be raised, and the key conditions can keep up. For example, dissolved oxygen, such as stable water quality, such as parasites, such as regular disinfection, such as feeding, etc., are all to be considered!

People who have lived in the countryside must be surprised by this phenomenon, there is not a single fish in a good pond, but after a while, there will be fish, which is too strange, right?

1. From groundwater2. Close to reservoirs or fish ponds3. With the help of wind or rainFourth, the pond soil with fish roeIt is important to know that fish eggs are extremely vigorous, and some fish eggs will survive even in arid soils, and then they will grow into fish if the conditions are right. Therefore, the pond "grows" fish, and it is also possible that this place was originally raised with fish, but when the water dries, the fish disappear, and the eggs left behind are attached to the soil. When it is discharged into the pond, the eggs have a more comfortable environment and they begin to grow and grow into fish.

0001.Bilibili - Why is there fish when there is water in the pond? How do fish come from?

It is possible that the eggs have successfully moved into the pond by the wind or the water potential, and because there were no fish in the pond before, no one cared, and after a long time, the eggs hatched, the fish multiplied, and the fish appeared.

Over time, some of the eggs stuck to other animals, or some of the grass was blown by the wind. It is also possible that because of the groundwater, some large pits will come into contact with the groundwater, and some fish eggs will be in the groundwater and enter the puddles.

This is because, probably, some of the eggs of fish arrive in the pond to hatch with animals or aquatic plants near the fish pond. Or it may come from a heavy storm and rain that has moved fish eggs from other places to the pond.

Because in the water in the pond, there are fertilized eggs of fish, and the fertilized eggs are not noticed by us. After a long period of incubation, the fertilized egg will take on the appearance of a fish.

There are no fish in the pond, but after a long time, the fish will appear because people have released fish in the pond, or some action has caused the fish to escape into the pond.

Haven't you heard of thousand-year-old grass seeds and ten-year-old fish roe? In the beginning, the earth was all oceans, so as long as there is water all over the land, the fish roe will naturally hatch after a long time.

There is a saying in our hometown, a thousand years of grass seeds, ten thousand years of fish roe.

1.First of all, when the fish is about to die, we must consider whether the place we choose to put the fish is too small, and the fish pot is too small to cause the fish to survive for a short time.

2.Secondly, when the fish is dying, it is necessary to change the water of the fish in time and change it to clean water. Storing water for a long time will also cause the fish to survive for a short time, so if you want the fish to survive well, you must be diligent in changing the water for the fish.

3.Again, if you find that the fish is dying and has turned over, in addition to changing the fish to a big environment and fresh water, you can also straighten the fish and shake the tail of the fish, so that the fish can be woken up.

4.Finally, in addition to doing the above steps comma, no matter for a long time, it will still be circulated, at this time we can put it under the faucet, unscrew the faucet slightly, so that there are small droplets of water dripping into the head of the mountain, to prevent the fish from hypoxia.

5.If the conditions allow, you can buy an aerator.

1. Raising small fish at home is not enough because the living conditions of small fish are not met. Fish farming requires large tanks, clear water, and sufficient dissolved oxygen, while tropical fish also need the right water temperature. Insufficient conditions are not possible to successfully feed small fish.

2. Artificially cultivated ornamental fish live in a superior sail cover environment for a long time, and are less disturbed by changes in external climate and feeding conditions, so the disease resistance is poor, and if the feeding method is not appropriate in home breeding, or the feeding conditions are not equipped with sedan chairs, they will get sick or even die. Generally speaking, all those who are carefully raised and managed properly; Pay attention to stocking density and avoid changes in water temperature; Maintain good water quality, fresh bait, quality, fixed loss, regular feeding and other main links, you can raise ornamental fish well.

The lifespan of fish is as short as 1 3 years and as long as several decades, the lifespan of carp is about 80 years, and the lifespan of Arowana is relatively long, at about 35 years, these fish will sink to the bottom of the sea after old age, and then be eaten by those small fish.

Most of the fish in the pond have a lifespan of 5 or 20 years, and after they die of old age, they sink directly to the bottom of the pond or are eaten by other fish, which is possible, and it is possible that they are buried directly in the soil.

Between 10 and 80 years old, these fish sink to the bottom of the water, then they are eaten by other fish, corroded by the water, and finally become soil nutrients, which then feed other microorganisms.

The lifespan is about 2 to 20 years; When they die, they are used as roe, and they become good feed for farming.

First use the water of the pond to raise, and slowly change the tap water little by little. Try it.

It's hard to raise, and it won't work for a day or two at most.

Why aren't you in BAI?

Put some in the pond.

The water of the duën side, zhi

Then put some water from the dao house in the amount of 1 3, and let the small fish adapt to the environment first. If you really want to feed small fish, concentrate on getting a thermometer and calculating the water temperature of the pond, which is also the temperature in your tank. It's better to muddy it first, and put some rocks and grass from the pond.

Add some coarse salt as appropriate.

Summary. First of all, most fish have a relatively long lifespan, usually more than two years. Moreover, there is a certain relationship between the lifespan of fish and their body size, and the larger the fish, the later it will take to mature, which means that the longer their lifespan.

Although this rule is not 100% correct, it is consistent with the growth conditions of most fish in nature, such as those large fish in the ocean, which generally live for more than a few decades. In addition, the fish are trapped in the fish tank, and although they lose a lot of space to move, the possibility of being preyed upon by natural predators is almost eliminated.

First of all, most fish have a relatively long lifespan, usually more than two years. Moreover, there is a certain gap between the lifespan of fish and their body size, for example, the larger the size of the fish, the later it will take to mature, which means that the longer their lifespan. Although this rule is not 100% correct, it is consistent with the growth conditions of most fish in nature, such as those large fish in the ocean, which generally live for more than a few decades.

In addition, the fish are trapped in the fish tank, and although they lose a lot of space to move, the possibility of being preyed upon by natural predators is almost eliminated.

Secondly, almost all the fish we come into contact with on a daily basis are ectotherms, which is their outstanding advantage over homeotherms in terms of survival. Natural animals can be divided into two categories: ectothermic animals or mold digging and homeothermic animals, homeothermic animals need to maintain internal temperature through the internal temperature regulation mechanism, so they also need a lot of energy to maintain internal temperature balance. Ectotherms, on the other hand, omit this link, and the temperature in their bodies will change with the change of ambient temperature, so it is easier to adapt to environmental changes, and at the same time, it also reduces the consumption of slow energy, which in turn reduces food intake.