The fish tank is equipped with a submersible pump, how often should the water be changed?

The ** of submersible sewage pumps is about one or two thousand yuan per unit, the cheap ones are a few hundred yuan, and the expensive ones are several thousand yuan. Submersible sewage pumps for different purposes** are also different. In terms of use, the enterprise unit wastewater discharge.

Municipal sewage treatment plant discharge system. Subway, basement, civil air defense system drainage station. Sewage discharge from hospitals, hotels, and high-rise buildings.

Sewage and drainage stations in residential areas. Discharge of dilute slurry from municipal works, construction sites. Water supply installation for waterworks.

Sewage discharge from livestock farms and irrigation of rural farmland. Exploration of mines and water treatment equipment. Instead of shouldering people's burdens, sucking river mud.

The conditions of use are water temperature 60 and liquid pH 4 10. If you want to know more about submersible sewage pumps, you can consult Tianjin Aote Pump Industry Co., Ltd., thank you!

There is no fixed mode, the water body is clean and less replaced, and the dirty water must be changed frequently, the water must be sun-dried, and the temperature in the fish tank is about the same, the filter cotton should be cleaned and replaced frequently, and a large number of nitrifying bacteria are produced in the water body for about a month, and the water will be naturally clean. Do not turn off the filter pump and leave it on 24 hours a day.

Kiss! First of all, I will tell you that the big fish tank recommends that you put the submersible pump, the position depends on the performance of your air pump, the amount of gas to grasp yourself, I must put the maximum, because I don't just raise a fish, can you take out your fish tank to see, the internal filtration is generally at the bottom of the glass or volcanic stone, and then put the high-grade filter cotton and white ordinary cotton stacked, ordinary cotton should be changed frequently and immediately when it is dirty, otherwise the water will be full of water, and the gas will not be filtered, dear! There is still a problem to continue, and there is no trouble. Thank you!

It depends on the flow rate, the pump has an hourly flow mark, and the hourly flow rate is three times that of the fish tank water body, so it is not too big, and the parrot can eat and pull the filter to get it well.

It depends on what fish you raise. If it's a small fish, 25 to 30 watts is enough. The words of swallow fish are enough.

If you raise goldfish, 40w is about the same. It is recommended to buy energy-saving pumps, such as Nissan Red Box Series pumps or Smurf series pumps, which have a very good price-efficiency ratio. 25W is about the same as about 35W.

Those who have money can buy inverter pumps.

Before determining how much power you use, it is best to talk about some general principles of pump use: 1. The hourly flow rate of filtration should be 2-12 times of the total water volume 2, the hourly flow rate of different feeding objects is different 3, different feeding modes should use different filtration modes 4, and the actual flow calculation should be deducted from the head loss to sort out the above points, and you will know that your problem is missing.

Before determining how much power you want to use a pump, it's a good idea to talk about some general principles of pump use:

1. The filtration hour flow rate should be 2-12 times of the total water volume.

2. The hourly flow rate of different feeding objects is different.

3. Different feeding modes should be filtered for different feeding modes.

4. The actual flow calculation should deduct the head loss.

After sorting out the above points, you will know that your problem lacks the necessary conditions, that is, you don't know what you raise, so you can only give some suggestions roughly:

1. The total water volume of your tank is about 200L, and the suitable filtration flow rate should be between 400L H and 2400L H.

2. This flow rate is about equivalent to the marked flow rate of 6W-40W submersible pump.

3. If you raise jellyfish, the hourly flow rate is 2 times, just use 6W, and it is best to raise SPS corals more than 10 times, and a pump of about 40W. Other habits of the fish are happy to be determined.

4. If it is a bottom filter, calculate the capacity, and if it is a bottom filter, calculate the capacity of the bottom cylinder together.

3. Actual flow formula: actual flow = (marked head - actual head) marked head * marked flow.

In addition, poor water quality is not necessarily just a flow problem, but also the setting of filter media and feeding density.

The following is for reference.

352020 Fish Tank.

It is recommended to use a 7W submersible pump.

It depends on whether you use the upper filter or the bottom filter, if the upper filter drip flow needs a small pump, the wattage is 25 watts, the general three-in-one pump is enough, the pump is too large to flood the gold mountain. If you want to use a bottom filter, use 35-45 watts.

Use the length * width * height (cm), divided by 1000, which is the number of liters of the fish tank, and then buy one that is 2 times larger than this liter, generally 1500 liters per hour.

The 1800 flow rate pump recommends the AT305 or AT306 which is cheap, durable, and silent. Hope.

8W internal consideration, can be changed to upper filter.

Summary. In general, even if there are no problems with the pump, it should be replaced once a year. If there is any wear, malfunction, or damage, it should be replaced immediately.

Aging pumps that have been used for a long time should also be replaced. In addition, the working environment and frequency can also affect the life of the pump. If your fish tank is exposed to high temperatures, high humidity or low oxygen, or if you often need to carry out frequent water exchanges, the life of your pump will be significantly shortened.

Therefore, it is necessary to adjust the replacement time according to the actual situation.

Excuse me, but please go into more detail?

In general, even if there is no problem with the pump, the stool should be replaced once a year. If there is any wear, malfunction, or damage, it should be replaced immediately. For aging pumps that have been used for a long time, they should also be replaced.

In addition, the working environment and frequency can also affect the life of the pump. If your fish tank is exposed to high temperatures, high humidity or low oxygen, or if you often need to perform frequent water exchanges, the life of your pump will be significantly shortened. Therefore, it is necessary to adjust the replacement time according to the actual situation.

1. Here we recommend not to change the water within one month after the cylinder is opened. Because the month when the cylinder is opened is a stage of large fluctuations in water quality.

2. The water quality required for fish farming in the base section of the shirt needs to be relatively stable, so if you change the water frequently during this month, the process of water quality stability will become very slow. It is not conducive to our water raising, and it is not conducive to the stability of the new fish or reputation of the tank.

3. So don't change the water within one month of opening the cylinder. Then you can keep the water for a week or 10 days after opening the tank for a month, and you can change the water every 10 days.

The water in the fish tank is generally changed once a week.

The frequency of water changes is related to the water quality requirements of the fish. If the fish are sensitive to water quality and have high requirements for cleanliness, then the water needs to be changed more frequently and not too long. Some fish do not have such high requirements for water quality, so the interval between water changes can be appropriately longer.

In general, the frequency of water changes will be about once a week, and it can be adjusted according to the specific situation.

The specific frequency of water changes varies from season to season. In summer, due to the relatively high temperature, the water change is the most frequent at this time, and it cannot be left unchanged for a long time. In spring and autumn, you can extend this interval appropriately, changing it once a week or so.

The frequency of water changes in winter is the lowest, which can be done once every two weeks or so.

Precautions for changing the water in the fish tank

When changing the water in the fish tank, it is necessary to pay attention to the fact that fresh water must be stored a day in advance, and the amount should be sufficient, so that the purpose of this is to release chlorine in the fresh water. If possible, it is best to store the required fresh water about 3 days in advance, or add submersible pumps to the fresh water to speed up the exchange of gases.

Before changing the water in the fish tank, a sufficient amount of sea salt should be added to the stored fresh water, and then stirred to completely dissolve the salt grains. In addition, the specific gravity of fresh water should be consistent with that of fish tank water, or a submersible pump should be added to the fresh water to dissolve the salt grains.

When changing the water in the fish tank, it is necessary to first pump away the old seawater that needs to be replaced, and then slowly inject the new seawater into the fish tank.

The frequency of changing the water for fish at home depends on whether the fish tank is a bare tank and the adaptation of the fish. There are four types of cases, which are as follows:

Situation 1: If the fish tank is a bare tank (that is, there is nothing in the fish tank except fish), it is generally enough to change the water once every 3 days, and the water exchange is maintained between one-third and one-quarter of the total water volume.

Situation 2: If there are aquatic plants in the fish tank, it is generally enough to change the water once a week, and the water exchange can be maintained between one-half and one-third of the total water volume.

Situation 3: The tap water that has just been connected from the water pipe may contain certain chemical components, which is not suitable for direct fish farming, and can only be poured into the fish tank after a few days in the open mouth.

Situation 4: How often to change the water for fish at home is also related to the type of fish, such as raising a colorful fairy aquatic grass fish tank, only one-fifth of the water can be changed at a time; Goldfish have a dependence on water quality, and if you change the water once a day at the beginning, you should keep it all the time, otherwise it will be difficult for goldfish to adapt.

How to change the water in a fish tank:

1. Trap the water in advance: To change the water in the fish tank, you must first trap the water in advance. The method of trapping water is very simple, that is, after connecting the water, it is placed in a sunny place, and the residual chlorine in the water volatilizes by receiving light, and some impurities can also be precipitated.

In summer, it usually takes one day to be stuck in water, two days in spring and autumn, and more than three days in winter.

2. Water change method: Before preparing to change the water in the fish tank, you need to find a pipe, pass one end to the bottom of the fish tank, and put the other end lower than the bottom of the tank, so that you can pump the water out of the bottom of the tank by sucking a mouthful. In addition to this, it is also possible to pump water directly.

After pumping, the trapped fresh water is slowly poured in from the tank wall so that the water quality does not fluctuate.

3. Precautions: Do not change the water violently, and then pay attention to the water temperature. It is best to keep the temperature of the new water and the old water consistent, and the difference should not exceed 2, if the temperature difference is too much, the fish will also feel uncomfortable, and even affect their health.