Why are fish always at the bottom of the tank? Why is the fish always at the bottom of the fish tank

Because the fish can find security in the tank, it is not easy to catch in deep water. This in itself is a habit of his, and he only floats up a little bit with it when he breathes.

1. Water quality is unstable.

The main reason why fish will lie on the tank is that the water quality is unstable, which is not to say that the water quality is not good, but the recent changes are too great, such as changing the water with more water, or cleaning or replacing the filter material, which will lead to fluctuations in water quality. Therefore, the amount of water must be controlled when changing the water, and at the same time, the filter material should not be washed easily, which is not good for the health of the fish.

2. Environmental changes.

In addition to changes in water quality, other changes in the water body can also cause it to fall into the tank, such as the introduction of new fish and changes in the flow of light. These changes may not be very harmful to the fish, and it will take a while to get used to them, but to be on the safe side, try not to change the external environment of the tank at will.

3. The fish are sick.

If a fish gets sick, it will also cause it to lie on the tank. However, this type of lying tank often has other characteristics, so it is easier to distinguish. During the sick period, the appetite is not very strong, and they will not rush to eat after feeding.

At this time, what needs to be done is to change the water in time, and at the same time, it is necessary to increase the water temperature appropriately, and put an appropriate amount of salt into the water, and keep the salinity at about it.

Fourth, frightened.

If a fish is frightened, it may also be caused by changes in the environment, or abnormal sounds and light disturbing it. It should be noted that lying on the tank is the first step in the fish's stress response, and if you don't pay attention at this time, the situation will worsen, causing it to be blindfolded and hyperemia on the body surface.

1. Stop feeding and recuperate.

Usually, after the fish has just entered the new tank, due to changes in the environment and not adapting to the water quality, it will sink to the bottom. At this time, it is necessary to suspend feeding, do not feed it, and do not change the water, so as not to affect its recovery due to water quality fluctuations. Generally, after a few days of resting, the fish will no longer sink to the bottom.

2. Change the water in time.

If the water quality is not good, the fish will also sink to the bottom, and what needs to be done at this time is to change the water in time. Usually it should be changed once a week, if the filtration is better, it can be changed once every half a month, and the water temperature of the new water and the old water should be consistent.

3. Increase the water temperature.

Fish often have certain requirements for water temperature, especially tropical fish, if the temperature is relatively low, it will cause it to be inactive, and it will also sink to the bottom. What needs to be done at this time is to increase the water temperature, generally around 20-30, so that the fish will start to move and feed.

Fourth, ** disease.

When a fish is sick, it can also cause it to sink to the bottom. At this time, it needs to be properly heated, and then speed up the water change interval to maintain water hygiene, and also properly add salt, and the concentration is appropriate. If it is not good, you need to mix it with medicine into a solution and soak the fish.

You change the water too much at one time, causing the water pressure to decrease suddenly, and you add water quickly, resulting in a sudden rise in water pressure, therefore, the pressure inside and outside the fish is unbalanced, so bubbles appear, the whole body of the fish is wrapped, and it is even easy to die in severe cases. Help should be made to wipe off the bubbles immediately to prevent the fish from floating, which it cannot save on its own. If this catastrophe does not die, the water change in the future must comply with the one-third principle - each water change is one-third of the water in the fish tank.

Eliminate unstable water pressure.

The reasons why the fish do not move at the bottom of the tank are: disease, water quality, low water temperature, etc.

1. Illness

Ornamental fish are more likely to be sick, this problem mainly involves the problem of our selection of fish, before the ornamental fish enter the fish tank, they may have been sick, so they will be more lazy swimming, and then we do not pay attention to some problems in the usual feeding, resulting in ornamental fish disease, so they do not like to move.

In most cases, if we observe carefully, we will find some specific symptoms of ornamental fish, such as dull body branches, tarnished, white hair, white spots, ascites, enteritis, etc., these diseases may cause ornamental fish not to move, and most of them are in the early stage of ornamental fish disease, and in the later stage, if the ornamental fish do not like to move, many symptoms are already very obvious.

2. Water quality

There is a big problem with the water quality of the fish tank, as the name suggests, that is, the water quality of our fish tank is caused by too many toxins, in many cases, if the water is turbid, the ornamental fish have symptoms of hypoxia, most of them will float to the surface of the fish tank and breathe non-stop, only the toxins in the water quality are too high, it is very likely that they have been poisoned, so they will be reluctant to swim.

At this time, we have to find a way to improve the water quality of the fish tank, or use water quality testing reagents, one by one analysis and verification, generally ammonia nitrogen, nitrite is too high, if we do not change the water for a long time, it may also lead to too high nitrate.

3. The water temperature is too low

The water temperature is too low or **, resulting in a cold for ornamental fish, the water temperature of our fish tank is too low, it will lead to a decrease in the appetite and mobility of the ornamental fish, some ornamental fish, for example, we say that tropical fish will lose their vitality and appetite when the water temperature is too low, and even suffer from the symptoms of a cold, which will cause them to lie on the tank for a long time, and in severe cases, they will have white spots and white hair.

If it is said that it is white spots and white hair, we may still have a chance to be the best, and the most feared is the asymptomatic cold, and the ornamental fish will slowly die.

In addition, the water temperature is too low or the water temperature ** is related to the temperature difference when we change the water, many aquarists will actually notice this situation, but sometimes the hail and sensitivity often forget, so it must be a necessary small equipment for us to change the water at any time. We can throw the water thermometer directly into the trapped water tank, so that it is not easy to forget easily.

1. The water temperature is too low, and the water temperature should be 20-25 degrees.

2. The space is small, and there is no room for fish to move.

3. Hypoxia, of course, this situation is also extremely hypoxic. Traces collapsed.

4. Sickness, what kind of disease you have, you need further observation.

5. Measures: If it is a problem of water temperature and space, it is necessary to change a large tank and ensure the temperature. Put some salt in the water, and the concentration is a little better. After 3 days of observation, if there is still no improvement, Ziyuan will consider going to the hospital to consult a doctor for further examination.

If it is because the water quality is not good, you need to change the water in time. If it is because the fish is sick, you can take a medicated bath**, if the nucleus is lost but there are parasites in the body, the matter will basically be replaced with a new fish.

If you have one fish and one is sunk in the tank, it is possible that he will feel unsuitable or that his body is sick.

It shows that this fish has good water quality and good physique.

The fish in the tank has been swimming on the surface of the water because of the lack of oxygen in the tank, as long as it is oxygenated in time, it can return to normal. When the water quality is corrupted, the fish will also swim on the surface of the water, and some fish will also jump out of the tank. When feeding fish, if the feed is too buoyant, it will also cause the fish to swim to the surface to eat.

The fish in the fish tank are upstream on the water surface, which is caused by the lack of oxygen in the tank, especially for the fish with a large demand for oxygen, it is easy to be hypoxic, as long as the tremor rises and aerates it in time, it can return to normal. ​

When the water quality is corrupted, the fish will also swim on the surface of the water, and some fish can jump out of the tank, it is best to change the water in the tank in time after discovering this situation.

When feeding the fish, if the buoyancy of the feed is too large, it will also cause the fish to swim to the surface of the water to eat, usually the fish will sink to the bottom of the tank after eating, if it is still swimming on the water surface, it means that it is not full. ​

Why do fish sink at the bottom of the fish tank.

Answers. 1.The fish sinking to the bottom of the tank indicates that it is feeling unwell, either because of a lack of oxygen or poor water quality, or because the temperature is too low.

2.If it is caused by hypoxia, the fish tank needs to be oxygenated with an oxygenation device, and it will recover after a period of time.

3.If it is because the water quality is not good, you need to change the water in the fish tank immediately, but not too much, you can change a quarter of it each time.

4.If it is because the temperature is too low, you need to increase the temperature of the water.

It is generally a timid behavior, it may be that the new fish is not familiar with the environment, so the fish has been staying at the bottom of the tank, and there is no appetite, and after some time the fish slowly adapt, they will take the initiative to forage for food, swimming back and forth. If the fish have been raised for a period of time, they used to be fine, and suddenly they don't eat and stay at the bottom of the tank "facing the wall", it may be that the fish are sick and need to be isolated and treated to avoid infecting other fish.

That's right.,If it's on the top of the fish tank, it means there's no oxygen in your water.。。