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In what water can the fish have nothing to breathe

maintenance, care, compatibility

Why do fish in aquarium suddenly start dying?

Imagine what a fish is experiencing when it goes from one water to another, the parameters of which are significantly different. Buying a fish in a pet store, you deprive it of its usual environment, transferring it to your own, which is completely unfamiliar to the fish.

Water differs in hardness, temperature, acidity, etc. Of course, the reaction to such a change will be stress. A sharp change in acidity of at least 1 unit indicates death for sensitive fish.

Sometimes the difference in acidity is much more, so the shock that the fish is experiencing can end in death.

Proper adaptation of the fish to the new environment:

  • Pour the water with the fish in a large vessel;
  • Add some water from the common aquarium;
  • After 10-15 minutes, repeat the procedure;
  • Dilute with water to at least 70% solution.

Even if several new fish managed to survive after a crushing change of water parameters, then they will surely die in the first illness. Immunity is significantly undermined, which means that bacteria attack them first. Carefully follow the aeration, cleanliness and new inhabitants.

In the best case, the health of the fish is normalized.

No one wants to blame himself, so beginner breeders blame the disease. Unscrupulous sellers only reinforce their doubts, because they have a goal to sell expensive medicine and cash in on.

However, do not rush for a panacea, carefully examine all possible causes of death.

Blame the disease is possible only if the symptoms have been noted for a long time. The fish died away gradually, and not just died in an instant, for no apparent reason.

Most often, the disease is brought to the aquarium with new residents or plants. Death may occur due to malfunction of the heating element in cold weather.

Going to pet stores, you should be aware of what exactly you need medicine. Each of the drugs directed to a specific disease. Universal drugs do not exist!

If possible, consult an experienced aquarist or ask a question on the forum, knowledgeable people will tell you what to do in this situation.

Of course, the disease can not kill a healthy fish. Why do fish die in an aquarium? If the death occurred, then the immunity has already been undermined.

Most likely, the first two errors occurred. Do not rush to launch new residents, no matter how beautiful they are.

What to do to protect the aquarium:

  • Organize quarantine for new inhabitants;
  • Sanitize fish or plants.

What to do if the disease started up in the aquarium:

  • Change one tenth of the water daily;
  • Increase the temperature;
  • Strengthen aeration;
  • Remove the carriers of the disease and those who are clearly infected.

Remember which fish you ran at home last. Individuals brought from other countries can be carriers of rare diseases, to detect and classify which are sometimes not possible on their own.

Utilities do not set themselves the task of purifying water to such an extent that aquarium residents feel comfortable. Their goal is to make it safe for the person and his home. Hence the popularity of bottled water.

Tap water contains the maximum chlorine level. In large cities, there may be a probability of changing water from artesian to desalinated. As a result, water hardness will increase, leading to mass death.

You can notice this by the modified behavior of the fish – they begin to rush around the aquarium in a state of horror.

You can avoid this situation. For this:

  • It is not recommended to change at a time more than 1/3 of water
  • Settle the water in an open vessel for at least a day;
  • If possible, purchase a water filter with three secretions;
  • Use chemicals.

Please note that deaths are those fish that were already in a state of stress.

The film found on the water often causes the owners of aquariums to suffer with questions: what is it and how can it harm the fish? In fact, such a phenomenon is most often the result of improper care of the aquarium. The main reasons for the appearance of films on water:

  • pollution of aquariums;
  • ingress of foreign particles into the water;
  • the presence of rotting products in an aquarium;
  • reproduction of bacteria.

Accordingly, any negative processes related to aquarium water are accompanied by the presence of a large number of pathogens. If the presence of a film is detected in an aquarium, this always involves the reproduction of bacteria.

They are known to have negative properties and can very seriously harm floating fish and snails, which are very sensitive to bacteria.

In order to avoid troubles associated with the pollution of aquarium waters, you should constantly monitor the cleanliness in the aquarium. It is necessary to regularly clean the water in large tanks, and in small ones to replace it with fresh water.

This will prevent such troubles and will be able to prevent diseases of the fish. It is important to properly clean the water and ensure that it does not appear any traces of reproduction of microorganisms that can harm animals and fish living in aquariums.

Since the appearance of the film in the aquarium water is always an alarming bell, it is therefore important to notice such changes in time and take action. If nothing is done, then the following troubles are possible:

  • the growth of bacterial colonies;
  • diseases of aquarium inhabitants;
  • death of fish and other organisms living in aquariums;
  • oxygen starvation.

In a polluted environment, harmful microorganisms feel particularly comfortable and begin to actively proliferate. They poison their environment with waste products and lead to the fact that the fish have nothing to breathe, as well as fish affect various diseases.

To avoid serious problems, it is important to ensure that no film appears on the surface of the aquarium. It is important to note that it is the insufficient amount of oxygen that leads to the reproduction of malicious microbes.

Absolutely all living things need oxygen. They can take it from the air or water.

But how do fish breathe? They have no organs as complex as their lungs.

But the fish have gills. They help to absorb this gas when breathing. At the same time, they function much more efficiently than our lungs, because they are able to take up to 30% of the oxygen dissolved in it from the water.

But in reality, the ways of breathing in fish is much more. All of them evolved as a result of a long evolution and are inherent only to certain species.

Of course, fish breathe gills. This is known to all.

But then how to explain the fact that some species that are out of the water, in damp grass or on the ground, can live there for several hours? How do fish breathe in such conditions?

Certainly not through the gills.

A number of species, such as the crucian carp, eel, carp, carp, in the process of evolution have an additional opportunity. They can absorb oxygen across the entire surface of the skin.

This is especially true when the level of this vital gas in water drops to a critical point. Then the gills become ineffective, and skin respiration comes to the fore.

Many aquarium owners have noticed how fish breathe. They often swim up to the surface of the water and stick their heads out a little.

What are they doing this for?

Many species of aquarium fish have a specific respiratory organ – a labyrinth. With it, they can actually absorb oxygen not from water, but from atmospheric air.

At the same time, the fish should rise to the surface at least once every few hours and take a breath. Otherwise, she will die.

Gill labyrinth is located on both sides of the fish head. It is located above the gills.

When a fish swallows a bubble of air, it falls into the spongy chamber of the maze. Their walls are densely covered with capillaries.

Oxygen penetrates into them, which is then carried to all organs and tissues of the body. Gill maze helps fish not only survive in an oxygen-depleted body of water, but also move to another.

So, what fish breathe in water is quite understandable. But what about those who can stay out of the water for several days? Do you think these do not exist?

Not at all. A bright representative of such fish is climbing perch.

He lives in the Far East.

The gills of this unique fish are designed so that it is able to absorb oxygen from the air. In addition, it has a special scale structure, which allows it not only to move on the ground, but also to climb trees.

Actually, for this feature, it got its name.

By the way, this view is not the only one. There is another fish that can breathe air — a muddy skipper.

It lives in areas of Africa where severe droughts are often observed. This fish has developed an interesting way to survive these unfavorable periods for themselves. When the pond dries up, the skipper digs into the mud.

There he is able to stay without water for several months. Only when the water comes back does he come out of his improvised shelter.

So does most of lungfish. This group deserves special attention.

Lungfish fish belong to a very ancient group. Paleontologists find the remains of these creatures in the layers and sediments of the Paleozoic era.

For quite a long time they were considered completely disappeared species. And only after studying the nature of Australia and Africa in the 19th century was a stunning discovery. Modern species of lungfish were found.

This not only influenced the views of scientists on the systematics of vertebrates, but also made its own adjustments to the evolutionary theory.

In addition to the characteristic gills, all lungfish are found in one or a pair of lungs. This is a modified swim bladder. With the lungs of mammals, these organs have nothing in common.

Their walls are permeated with numerous capillaries, through which gas exchange occurs. Do fish breathe with oxygen dissolved in water? Of course.

But only when it is enough in the water. They need lungs only to wait out a long period of drought, immured in silt, or to move from one reservoir to another.

As a rule, they have highly developed fins, which are able to play the role of limbs. So, lungfish can make transitions lasting even a few days.

With mammals, birds and insects living on the earth, everything is clear – they, like people, use air for breathing. The aquatic environment is very different from the ground.

However, in humans and fish there are not so many differences in terms of breathing, as it may seem at first glance.

The question “opened a pet store. Business is not going. What to do? “- 2 answers

1. The vast majority of organisms (with the exception of some types of bacteria) need oxygen. Fish are no different.

There is quite a lot of dissolved gas in the water. That is what the fish eat.

Oxygen, swallowed with water, enters the gills, from where it is subsequently spread throughout the body, saturating organs and tissues. Oxygen is involved in a series of redox reactions occurring in the body, due to which the fish and receives energy.

2. The degree of absorption of oxygen from water is extremely high – 30%. For comparison, humans and mammals are able to use only a quarter of inhaled oxygen.

3. Not all fish breathe exclusively in the gills. In the course of evolution, they developed additional respiratory organs. For example, some fish are able to absorb oxygen through the skin, and the Anabantidae family, which includes such popular species among aquarists as cockerels, gourami, macropods, and liliusi, have a gill labyrinth that allows them to use oxygen contained in the air.

Moreover, if such a fish does not float to the surface within a few hours, it will die.

4. If you keep fish in an aquarium, you must ensure that your pets have enough oxygen in the water. In natural waters, water is saturated by waves, various ups and shallows, waterfalls.

At home, artificial aeration with the help of microcompressors and pumps will help improve gas exchange. And remember that the higher the temperature of the water, the worse the oxygen dissolves in it.

Some aquarists plant a lot of plants in the ground in the hope that they will enrich water with oxygen as a result of photosynthesis. In fact, the opposite effect occurs: plants consume much more gas than it produces.

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