Change the water, and the old dead fish, please master

It may be an infectious disease of fish.

Prevention methods:1Generally, the newly bought fish should be isolated for 3 days to a week and fed separately to ensure that they do not carry or suffer from any external and internal diseases (mainly observed by the naked eye, except for chronic fish diseases, generally diseased fish will show lesions within a week), in order to be mixed with the original fish; The newly bought aquatic plants are also the same, which may be the main reason.

2.When changing the water, it is best to add some baking soda to the water (it should be sold in the fish shop) and let it sit in the sun for half a day or in a dark place overnight. Later, this water is used to replace the original fish water (I am talking about the water when the water is completely changed, the fishing tank should also be washed to prevent harmful microorganisms from attaching), the water should not be changed too often, generally two weeks to a month, but half of the water can be poured out halfway, and pure water or water treated by the appeal method can be added.

Spring and summer are the high incidence of fish diseases, special attention should be paid to, and some prevention and control drugs can also be used.

3.This is a simple way to prevent large-scale fish diseases in general, and there are some special circumstances, tropical fish are afraid of cold to pay attention to the water temperature, it is best to put a special thermometer in it

There are probably the following reasons why fish always die:1. Frequent water changes, large water temperature differences, easy to cause a large number of fish to die!

It is recommended that you only pump out 1 3 water at a time, and the temperature of the new water should be within 2 degrees of the existing water! 2. If the water is not changed for a long time, or the density of the fish is too large, it will cause water pollution and serious hypoxia! It is recommended to reduce the density of the fish, change the water appropriately to increase the amount of oxygen, or turn on the oxygen pump.

3. When the fish is bought, it has germs, put it in the tank and infect other fish, it is recommended that the fish just bought, use a very small amount of potassium permanganate to the water, disinfect the fish, and the fish just bought do not rush to put it in the tank, the fish just bought is not packed in a bag, even the bag is placed in the fish tank for about half an hour to let the fish adapt to the water temperature in the fish tank, and put the fish away! 4。There are ferocious fish in the tank that will bite the honest fish to death!

5。Feed too much, especially the swallow fish, don't hold on, it's easy to die! 6。

Too low water temperature kills! That's all I have to say, it's all my own experience, I don't know if I can help you!

I'm getting a little bit of water in the river, because the fish are used to being in the river.

There are several reasons why all the fish die as soon as the water is changed

1. When changing the water, you can only change one-third to one-quarter, and you can't change a lot at once, and the fish will die if they don't adapt to it.

2. You can't use tap water directly, put tap water in a container first, let it discharge chlorine, preferably for more than 12 hours, and also increase the temperature of the water.

3. When changing the water, release one-third of the water in the fish tank and fill it with new water. I can't replace them all. Fish will die if they can't adapt to the new environment.

4. Don't take the fish out when changing the water, pour the water slowly and don't hurt the fish.

5. If there is stolen goods under the fish tank, you can use a plastic pipe with a diameter of 8 mm to suck it clean by pouring floodwater.

6. Do not place the fish tank in a place with sun, as it is easy to grow algae after the water is sunburned, which reduces the oxygen content of the water.

Reasons: 1. When changing the water, the fish will be extremely hypoxic, unable to breathe and die.

2. The temperature of the water has changed by changing the water, making it unsuitable for its living environment.

3. When changing the water, the fish may be accidentally injured.

4. The dirt in the fish tank is not cleaned up.

5. It is possible that the sunlight irradiates the aquatic weeds after the water change of the fish tank, which reduces the oxygen content of the water.

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Hello, it is because of the death caused by inadaptability, when changing the water, you can only change one-third to one-quarter, not a lot at once, otherwise the fish will die if you don't adapt. You can't use tap water directly, put the tap water in a container first, and let it discharge chlorine, preferably for more than 12 hours, and also increase the temperature of the water. When changing the water, release one-third of the water in the fish tank and fill it with new water.

If there is a stolen object under the fish tank, you can use a plastic pipe with a diameter of 8 mm to suck it clean with the method of pouring floodwater. Don't put the tank in a sunny place, the water is easy to grow algae after the sun, so that the oxygen content of the water is reduced, I hope it can help you

Do you think there's anything else you can help with?

This shows that you, the fish, are not fish, but the problem of the water, there is bleaching powder in the water, which needs to be precipitated and filtered.

First of all, when the water is changed, the fish will die if there is no water and cannot breathe, and secondly, if the water is not suitable for the growth of the fish, the fish will also die.

As soon as you change the water, all the fish are dead, which fully shows that there must be something wrong with the water you change.

I don't know what kind of water you change? The fish should be changed to filtered water or mineral water. If you switch to tap water, you should dry it three days in advance to release chlorine.

To fire water, you know, leave a little old water, add a little tap water five to five, and then the fish adapt to half an hour and an hour, and then put it in the new water fish tank.

Don't you understand the truth that the water in the fish tank can only be changed by half? In addition, if it is tap water, it needs to be exposed to the sun for two days.

It should be bad luck.

1 Reason: 2 1. When changing the water, the fish will be extremely hypoxic, unable to breathe and die of the socks. 3 2. The temperature of the water has changed, making it unsuitable for its living environment.

4 3. When changing the water, there may be accidental injuries that harm the fish. 5 4. The dirt in the fish tank has not been cleaned up. 6 5. It may be that after the water change of the fish tank, the sunlight produces aquatic weeds, which reduces the oxygen content of the water.

1. Each water change is 1 4;(There is nothing wrong with this, if the water quality is not good, it can be increased to 1 3).

Change once a day or so; (The interval between water changes is a bit too long, and it is best to change the water once every 5-7 days or replenish it every 3-4 days for tropical fish).

3. Change the water and add a little sea salt, nitrifying bacteria, water quality stabilizer, and remove water, add it according to the instructions, and add it to the filter cotton; (Salt doesn't need to be added every time you change the water; Nitrifying bacteria can be added; If your water has been dried for about 3 days, you don't need to add water quality stabilizers, after all, it is a medicine, and it has *** for fish; To remove chlorinated water, only add it when you directly change the water with tap water, and add it after the newly connected tap water ready to be changed is treated according to the dose; Do not add it to the filter cotton, after the temperature is adjusted, directly and slowly add it to the fish tank, adding the filter cotton will sometimes even destroy the stable nitrifying bacteria community on the filter cotton).

4. It is winter, and the hot water is the same as that of the water tank; (The temperature is the same or the new water is one degree higher than the original tank water).

5. But every time you change the water, you always have to die 1-2 fish, it's really heartbreaking, watching them die, I feel uncomfortable, what should I do? (Dead fish is normal, but changing the water and dead fish, I personally think it is related to the landlord's medication and water quality oscillation, find the reason from changing the water!) ）

Each one is a little wordy, I hope it will be useful to the landlord!

Do you use tap water?

Tap water has bleaching powder, which is toxic to fish.

The tap water should be left in a basin for about a day to allow the components of the bleaching powder to volatilize naturally, and then be used to raise fish.

You didn't say what kind of fish it was! It's hard to answer.

It seems that the friends upstairs have said in detail, so I'll talk about a simpler one, changing the water seems simple, but for the fish and shrimp, it's like changing the planet.

Most of the water used for water change comes from tap water.

Tap water mainly contains high amounts of chlorine and bleaching powder, which are deadly poisons for fish and shrimp.

It's good to use a bucket to fill the water and settle overnight. But I'm sure you don't have any extra containers, right?!

So I always use tap water mixed with high-temperature water, referred to as "water heater" (0 for electric bath water

1.During the water change process, the main temperature control is between 20-30, and it is best to go not too muchIt is said that tap water is poisonous, so we use water stabilizers (which are available in fish markets everywhere) to eliminate viral substances such as chlorine and bleaching powder in the tap water in proportional dosages.

3.Of course, there are conditions, and add a little nitrifying bacteria to ensure the balance of bacteria in the tank, so some people say that fish farming first raises water, in fact, raising water is raising bacteria, almost talking about this.

It is not possible to change the water of the fish with only tap water, because the tap water contains residual chlorine (disinfectant), so as soon as the water is changed to the fish, the fish will die; If you change the water at night, use a bucket to change the water until the next morning, because the chlorine has dissipated at this time, or take the tap water at noon, expose it to the sun for about three hours, and wait for the chlorine in the water to dissipate, so that you can change the ......water for your cute little fish

Fish farming is water farming, which is the most basic and fundamental truth of fish farming.

First of all, it is clear that tap water cannot be poured directly into the fish tank for fish (it must be dried for more than 24 hours).

In addition, the types of fish are different, and the requirements for water quality and hardness are also different (some fish, such as the lantern family, like old water, and the hardness should be low; Generally medium-sized, large ones prefer hard water).

Also, when changing the water for the fish, try not to use a fishing net to catch the fish, as this will hurt the small fish and they will die if the wound becomes infected. It is better to pump out the dirty water (one-third to one-quarter) with a pipe, and you can't change it every time, and replace it all.

Then there is the newly added water, and the temperature difference between the temperature and the water in the original fish tank should not be higher than 2 degrees.

Pay attention to this, and your fish won't hang up so easily.

It is not possible to change the water directly to the fish, you must first prepare a larger bottle or bucket, fill the fish tank with water, and then fill it with tap water, and put it on the balcony or in a sunny place to dry before you can enter the fish tank.

Maybe you were frightened during the water change!

It is directly added to the tank with tap water that has not been trapped. The solution is as follows:

1.Do not use tap water directly, change the tap water to water that has been left for three days, and the chlorine can be removed before it can be used by the fish.

2.Don't change the water too much, change it 1 3 at a time, otherwise the fish will be uncomfortable.

3.The temperature of the new water and the water in the fish tank should be about the same, at most two degrees worse, the fish will be irritated and will die, so put the new water next to the fish tank for a few hours before changing the water.

There are many reasons for this:

Don't let the fish out of the water for too long;

Pay attention to disinfection and disinfection of the changed water.

Because there are chemicals such as bleaching powder in the water. It's best to settle the tap water or take it to the sun before putting the fish in!

There are many reasons for the water change to die fish, it may be that the water quality has fluctuated greatly, or it may be that the temperature difference between Xinhong Chi water and the old water is too large, causing the fish to be uncomfortable, or it is a violent water change that makes them frightened. If it is a bucket plum because the water quality fluctuates, you need to control the amount and cycle of water exchange, and do not change it too often. If the temperature difference is too large, the new water should be mixed according to the old water to ensure that the temperature is consistent.

If it's because of violent water changes, rest and recuperate**. <

There are many reasons for the water to change the dead fish, it may be that the water quality has fluctuated greatly, or the temperature difference between the new water and the old water is too large, causing the fish to be uncomfortable, or the violent water change makes them frightened. If it is because of fluctuations in water quality, it is necessary to control the amount and cycle of water exchange, and do not change it too often. If the temperature difference is too large, the new water should be mixed according to the old water to ensure that the temperature is consistent.

If it's because of violent water changes, rest and recuperate**.

1. Trap the water in advance: If you want to change the water and not die fish, you must first trap the water in advance. Since most of the fish are raised with tap water, in order to remove chlorine, it needs to be placed in a sunny place to dry for a few days.

Generally, one day can be dried in summer, two days in spring and autumn, and it is best to dry for more than three days in winter.

2. Slow water injection: The water change process must be stable, and violent water change is the most likely to lead to the death of fish. First prepare the water pump, slowly pump out the old water in the tank, and then inject the trapped new water into the tank.

It should be noted that it should never be poured directly into it, but slowly injected from the cylinder wall.

3. Control the water temperature: If the temperature changes during the water change, the fish are also easily affected and die. In order to avoid this situation, it is best to measure the water temperature before changing the water to ensure that the temperature of the old water and the new water are relatively close, so that the water change is safer.