How to change the water in the fish tank scientifically? How to change the water in the fish tank?

Leave one-third of the original water, and if possible, the newly added water should be dried on the balcony for a day, or directly use purified water. It is best to change the water when the temperature is stable (around 10 am), be careful not to hurt the fish when fishing, it is best to scoop out the water together, and the water for temporarily releasing the fish should be close to the original, and directly use the water from the original fish tank.

There is a principle for changing the water in the fish tank, the proportion of each water change should not exceed 50%, and more than 50% will easily lead to sudden changes in the environment and the death of the fish inside. The frequency of water changes should not be too high, usually once a week or so. If nitrifying bacteria are already present in your fish tank, you basically don't need to change the water, just clean the filter once a month.

Many friends will put some sand and gravel in the fish tank, here you need to use a sand washer, which can ensure that the garbage inside is clean, when the fish tank is dirty, you can pump out 1 3 water, let the water in it precipitate, see if you want to oxygenate, but also clean the filter material in the bottom tank, if the fish tank water is dirty, it is necessary to use the pump to slowly pump it out, and the fish feces are wiped clean with cotton.

After changing the water, you can add a little dechlorinated water, or you can take a little coarse salt off a day, after the water is added, the water pump will be installed, and then you can cover the lid of the fish tank, and do not feed within two days of just changing the water.

After raising fish for a period of time, there will be a layer of pale yellow mucus on the tank wall, and the thicker the mucus, the more beautiful it will be. At this time, replace the water in the fish tank 1 2 or more at once. Unless there are special circumstances, the interval between water changes is generally at least one month.

In order to reduce the frequency of large water changes, you can buy a magnetic wipe to clean the inside of the fish tank regularly.

After the fish is taken out and settled, the moss and other dirt on the original tank wall are brushed off, the filter material is thoroughly rinsed, the isothermal new water is re-injected, and the fish is fished into the original pool (tank) after the water temperature is equal for a while. It is best to choose a sunny day before 9 a.m. and trap the water in a spare tank or basin the day beforehand.

When changing into new water, slowly add water along the wall of the fish tank, the water flow should not be too large, do not impact the body of the fish, otherwise it is easy to make the fish cold and injured, and adding a little salt after changing the water will have no effect on the fish.

In the hot summer and early autumn, the water in the fish tank is easy to be turbid or due to excessive feeding, the fish appear floating head phenomenon, at this time all the fish in the tank can be fished out, stir the feeding water, use a rubber tube to suck off 1 4-1 2 of the old water and dirt, and then inject the same amount of new water as the same temperature, and then fish into the original tank.

I usually use the water in the water purifier for the fish tank, the tap water has a lot of bleaching powder, and it is easy to poison the tropical fish if you use it directly. If you don't have a water purifier at home, you can prepare two buckets of water and put them there to settle for two days.

First, use RO machines to make pure water to avoid the accumulation of ingredients in the water. Then adjust the water to the same hardness and salinity as the fish tank. Adjust the water temperature to the same temperature as the fish tank. Stop the pump and pump out the dirty water that has settled at the bottom of the original tank. Inject new water and resume pump operation.

It's not that troublesome, I change the water once a week, about one-third, and pump it directly with a leather hose and fill it up directly with tap water. The cylinder is 150x60, and I have been raising golden dragons for five or six years.

It is best to choose sunny weather, and the time for changing the water is generally around 7-10 am or 3-4 pm. When changing the water, the temperature of the old and new water should also be kept balanced, and the water quality environment should be close to the water quality environment, so as to avoid fish not adapting to the new water quality environment and getting sick.

Pumping one-third of the water every day, adding tap water directly, every day, nothing

Replace two-thirds of each time, add tap water with solar energy. Sometimes add a pinch of salt.

It's really a waste of resources, change half of the basin every morning, put the pull away, and add it directly to the tap water. The fish are fine.

I don't need to bother at all, I raise small tropical fish, the water is dirty before changing, each time the water is changed more than 80%, that is, tap water, fish and shrimp are alive and well.

First brush the fish tank with a high concentration of potassium permanganate (available in pharmacies), wash it with clean water, soak it in the whole tank with a low concentration of potassium permanganate for two days, wash it with clean water, put it in tap water, and put it like one thousandth of a salt (sold in the fish market), note, one percent to five percent of the amount of medicinal baths said on the Internet, don't make a mistake, and then the water should be put for more than three days, and you can buy fish back after three days.

Water is essential for fish. When changing the water, don't add tap water directly, tap water usually contains chlorine, and we boil the water before drinking it to remove chlorine. Of course, the water used to raise fish is also chlorinated.

Let the tap water settle there for at least 24 hours, and it is better to be exposed to the sun, and it is better to leave it for two or three days. The temperature of the water is also very important, especially for tropical fish, which is even more delicate, and it is absolutely not possible to use too cold water, and ensure that the water temperature difference is less than 2 degrees when adding water to it.

Generally, the fish tank should be mastered when changing the water, and it is okay to change 1 3 half of the water volume each time, and do not replace it all, otherwise it will catch up with the time when the water is on the water, and when the chlorine content is very high, the fish will die.

1. Directly connect one end of the water pipe to the faucet.

2. Continue to put the other end of the water pipe into the fish tank and open the faucet to drain the air.

3. It is necessary to pull out the water pipe at the faucet for appropriate drainage.

4. If it's okay, reconnect the faucet.

5. In this way, you can change the water in the fish tank after turning on the faucet again.

Nowadays, many people like to raise fish, which can not only beautify the environment, but also make the mood happy. However, many people do not know the correct way to change the water in the fish tank, and the death of the fish caused by improper water change. So what is the correct way to change the water in the fish tank? Let's find out.

The correct way to change the water in the fish tank:

1. The tools that need to be prepared for water change include heating rods, thermometers, and siphons; 2. Put the water to be added to the fish tank in the sun, so as to remove the chlorine and harmful substances in the buried water; 3. After exposure, heat the water to the same temperature as the water in the fish tank, and keep it warm; 4. After the water is treated, use the siphon to pump out the amount of water to be replaced in the fish tank, and then take the same amount of treated water and add it to the water tank.

Precautions for changing the water in the fish tank:

Generally speaking, the amount of each water change is one-fifth to one-tenth of the original water volume of the fish tank, and the water change cycle needs to be adjusted according to the density of the fish, if the density of the fish is relatively high, it can be changed once a week; If the density of the fish is relatively low, you can change it every two weeks.

The fish tank should reduce the concentration of harmful substances by changing the water regularly, which can keep the water quality clear and stable, and the long-term stable water change can avoid the appearance of large areas of algae in the tank, and reduce the possibility of turbid green water quality and fish diseases.

Four benefits of changing the water in a fish tank:

First: In order to ensure the quality of the water quality of the fish tank.

Second: This can increase the amount of dissolved oxygen and nutrients in the water in the fish tank.

Third: Prevent the increase of harmful liquid substances and germs in the water body.

Fourth: Promote the effective work of the filtration system of the fish tank.

Look at the temperature difference, the time of water change, and the speed of water change.

It is best to change on a sunny day. The time is usually in the morning.

The advantage of changing in the morning is that the temperature difference, and the irradiation time after the change, it is easy to create a new environment. In the afternoon, the temperature difference is relatively large.

However, on dog days, changing in the afternoon has the advantage of adjusting the temperature and reducing the "stuffy tank".

It is important not to change and fish at noon, especially in the green, and it is even more unsuitable to change and fish at noon, otherwise it is very easy to get sick.

The reason is: in the middle and upper layers of the hot layer temperature is relatively low, the bottom temperature is low, lying at the bottom of the tank can avoid the strong exposure and avoid the bad environment of less oxygen, if you change or fish at this time, it is easy to cause internal injuries and disease.

Goldfish (scientific name: carassius auratus), a carp of the family Crucian carp, also known as golden crucian carp, is an ornamental fish that evolved from crucian carp. Goldfish is divided into four strains: culture, grass, dragon and egg, which originated in China and is an ornamental fish with Chinese characteristics, and is now distributed in all countries of the world.

Its body is beautiful, there are many varieties, its body color has red, yellow, blue, purple, black, white, two-color, three-color, five-color color, etc., its body shape has lion head, high head, blister, dragon eye, pom-pom, pearl scales, butterfly tail, tiger head and so on.

Goldfish in the wild state have a greenish-brown or gray body, but there are various variations of goldfish, such as black, flower color, gold, white, silver-white, and three-tailed, dragon's eye, or no dorsal fin. Centuries of selecting and cultivating such abnormal individuals have produced more than 125 species of goldfish.

Change the water in the fish tank, pay attention to the new water for two or three days, do not pour it directly into the fish tank, and pay attention to the temperature difference between the new water and the old water should be controlled within 3 degrees, only one-third of the new water should be changed each time, and the water should be poured slowly along the tank wall. Also, be careful to disinfect the fish tank and filter.

When changing the tap water for the fish tank, first use the basin to catch the water and dry it for two or three days, and then pour it into the fish tank. If the temperature difference between the new water and the old water is large, the fish will be very uncomfortable, affecting the spirit and appetite, and the temperature difference needs to be controlled at about 3 degrees.

Be careful not to flush the fish directly with water, take out the old water first, and then slowly inject new water along the tank wall. At the same time, do not change all at a time, only change 1 3 new water, so that the fish can adapt to the new water environment better and faster.

When changing the water finches, you should also clean the fish tank and filter by the way. Dirt will also accumulate in the cylinder wall, cylinder bottom, and filter box, so it needs to be disinfected and sterilized.