How can you keep fish in a tank without having to change the water frequently?

You can install a filter in the fish tank, so that the water quality can be clean, but the water will also affect after a long time, so you also need to change the water.

It is better to change the water of 1 3 a week to raise fish, because there may be some excrement in the fish tank, which is not good for the fish.

You can put some hydroponic plants in the fish tank, which can increase oxygen and purify the water in the fish tank.

Proper water change is also a necessary part of the management of fish farming.

How to control the amount of water change?

First of all, it is clear that the water change of the whole tank can only be carried out if the fish is treated, and the water change of the whole tank should be avoided as much as possible in the usual management. Because the fish have adapted to the water quality in the tank, changing the water in the tank will cause a sudden change in the water quality, making it difficult for the fish to adapt, and the old water environment will also be damaged. This is a very important reason why many novice fish cannot be raised.

In addition, changing the water in the whole tank is also a waste of time and water resources.

So how do you control the amount of water you change? Differentiation should be made based on factors such as the species, density and filtration conditions of the fish being farmed. For bare tanks, it is best to use a siphon to suck out the dirt at the bottom of the tank every day in combination with a water change, and add an appropriate amount of fresh water.

For the water plant tank, the water can be changed 1-2 times a week, and the special suction pipe can also be used to suck out part of the dirt in the sand, and the water exchange per week is about 1 5-1 2 of the total water volume. For different water quality conditions and different fish species, the number of water changes and the amount of water changes should also be different. If the fish density is large, the volume is small, and the water quality is easy to turbidize, it may need to be filtered day and night, and more water may be changed every day.

If the betta fish has a small amount of activity and likes old water, it should reduce the number of water changes and the amount of water exchange. The specific amount of water and the number of water changes often need to be experienced in the management of a fish tank for a long time.

For straw tanks, the amount of water should not be more than 1 3 at a time, and less for bare tanks. If you feel that the tank you manage needs to be changed by 1 2 per week, then you should divide it into at least two changes. The general principle is that the number of times can be as high as the amount of water should be small.

Stabilizing the water quality at a suitable state for the fish species is our ultimate goal.

What kind of water to change?

What are the requirements for water? Of course, the most basic thing is the water suitable for fish farming. Tap water should be dried or dechlorinated.

If you raise fish with high water quality requirements, the hardness of the water can be reduced by mixing it with boiled water; If the pH is not suitable, you can adjust the pH level environment to the desired pH value with pH raiser and pH lowering agent.

When changing the water of the fish with salt, the amount of salt should be calculated according to the amount of water exchanged, and then added to the tank after dissolving in the added water. It should be noted that the amount of water sucked out of the tank tends to be slightly less than the amount added due to evaporation. If the amount of salt is calculated according to the amount of water added for a long time, it may lead to a continuous increase in the salinity in the tank.

No, if you don't change the water, the oxygen in the water will be absorbed by the fish. Oxygen in water means that oxygen is dissolved in water, oxygen is insoluble in water, but it will always dissolve a small part. Because the bubbles in the water are the oxygen brought in from the air, if there are no bubbles, it proves that there is no oxygen in the water, so the fish tank should be oxygenated.

The principle of oxygenation in feed water is to dissolve oxygen in water through the flow of water in contact with air, the larger the contact area between water and air, the higher the efficiency, if the water is just flowing in the water pipe and not in contact with the air, it is useless. If you want to increase the amount of dissolved oxygen in the water, you can increase the solubility of oxygen in the water, and you can increase the contact area between oxygen and water, and the water pump can quickly replenish or cool down the oxygen in the water after it is consumed.

Fish farming requires regular water changes. If the water is not changed for a long time, a lot of fish metabolic waste and leftover fish food will remain in the water, thus breeding bacteria. In addition, the dissolved oxygen in the water will also be reduced, which will not be able to meet the needs of fish growth.

Over time, the fish will get sick or even die. If there is a good nitrification system and filtration system in the fish tank, and there are some aquatic weeds, then the frequency of water change can also be appropriately reduced, but the water can not be changed.

In the process of fish farming, ensuring water quality is an important task, and only in this way can the fish grow healthily. Regular water changes are an important measure to ensure water quality. Generally speaking, the water needs to be changed regularly in the process of fish farming.

If the water is not changed for a long time, the water quality will become very poor, and bacteria will grow in the water, which may cause fish to get sick and affect their healthy growth.

However, if you find the process of changing the water more troublesome, you can also take some measures to reduce the frequency of water changes. There are three things that need to be done. The first is nitrifying bacteria, and there need to be enough nitrifying bacteria in the fish tank to establish a complete nitrification system.

This system breaks down some of the organic matter and nitrates, which purifies the water and makes it clear. Second, a filter should be placed in the fish tank, or a well-functioning filtration system should be established, and the filter cartridge should be cleaned regularly afterwards. In addition, some aquatic plants should be planted in the fish tank, which can release oxygen and optimize the ecological environment in the fish tank.

As mentioned above, it is generally necessary to change the water regularly when raising fish, but it is also possible not to change the water, and appropriate measures must be taken at this time. If there is an excellent nitrification system and a strong filtration system in the fish tank, and there are some aquatic plants in the water, then the water can not be changed, and there will be no harm at this time. However, if the various settings and equipment in the fish tank are not perfect, and we do not pay attention to the regular change of water, then the water quality may gradually deteriorate, and the oxygen in the water will continue to decrease, which will cause harm to the health of the fish in the long run, and even lead to their death.

Fish tank water change method:

1. The lid on the top does not need to be opened, the water pump should be opened 24 hours a day to change the water in the fish tank, so wipe the inside of the tank with a rag, and then use the filter pump to circulate and filter or use the pipe to pump the booty at the bottom of the water and then change it to 1 3 water.

2. Using the principle of water pressure, insert one end of a hose into the fish tank, and insert the other end into the water exchange basin. Then suck the hose nozzle at the lower end, and the water in the tank will flow downstream. Then slowly pour the prepared fresh water into the fish tank.

It is recommended to change the water every 3-4 days 1 3-1 4. Fresh water should be left for about 3 days.

When you need to change the water:

1. When the water in your fish tank appears turbid, white, yellow, or green.

2. When you can't filter the fish feces to clean up.

3. If you are raising fish such as pearls or silver dragons in Luohan, then there is no need to change the water! Because your fish like it.