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Maximum temperature for aquarium fish. Water temperature for fish. Effect of water temperature

Temperature regime is an important component of life aquatic life, so you need to monitor the temperature of the water in the aquarium for the fish so that they do not get sick and are happy. Houses often contain tropical representatives families of fish, and therefore the temperature regime must be quite high, otherwise the pets may die.

The temperature regime is an important component of the life of aquatic inhabitants.

General information

Fish lack receptors that can maintain body temperature, as they are cold-blooded. Therefore, their health directly depends on the conditions that the environment offers them. If they are optimal and there are no sudden changes in temperature, then the pets feel great, actively move and give positive emotions to their owner.

But at sharp decline indicator to an alarming mark, the activity of the fish drops, they look lethargic. At the same time, immunity also leaves much to be desired, and pets can get sick or catch some kind of infection. Very often this leads to sad consequences. In addition, with a constant deviation from the optimal water temperature for fish in an aquarium, their life cycle becomes shorter. This way they die much faster.

With a sharp decrease in the temperature indicator to an alarming mark, the activity of the fish decreases, they look lethargic.

If the temperature is too high, this leads to the growth of bacteria, while the water may become cloudy. The behavior of the fish looks aggressive. The fact is that at high t, the oxygen content drops, which means that the waste products decompose more slowly, thereby greatly polluting environment. Pets have hypoxia, they float to the surface and gasp for air. So, it's time to urgently take measures to reduce the temperature of the water.

Optimal Performance

When thinking about what the water temperature should be in an aquarium, it is important to consider the type of pets. Because each fish needs special conditions of detention. And you need to know this when adding new residents.

The optimum is considered to be an indicator of 25 degrees Celsius. This is the normal mode for most popular types fish living in domestic waters. But there are those who are suitable for cooler conditions. So, Neons feel great at 18-22 degrees. Due to this, their life cycle is significantly increased, but some people like it “hotter”, for example, Petushki and Gourami prefer t of 27-30 degrees.

Neons feel great at 18-22 degrees.

Monitoring and regulation

In order to prevent temperature fluctuations, it is important to monitor the regime, this can be done using aquarium thermometers. . They are of several types:

mercury;
liquid crystal;
electronic;
alcoholic.

It is best to choose submersible specimens, they are the most accurate. Thermometers are attached to the suction cups, in the middle or closer to the bottom of the aquarium. Their only drawback is in the method of attachment, because suction cups often come across of poor quality, which means that the device will fall. In addition, some fish themselves like to throw off the thermometer.

Water heaters are used for regulation. They look like a glass bulb with a metal spring inside. At the top there is a lever and divisions, the heater must be set to the required mode and it will heat the water. But it's important to remember that when cleaning the aquarium, the device must be unplugged from the mains, because it is forbidden to get out of the water when it is turned on, it may burst.

Decrease by improvised means

Often in the summer it becomes especially hot in the apartment, the reservoir also heats up from the environment, which is unacceptable. On sale there are special refrigeration units and coolers. But the former are quite expensive, while the latter are ineffective. Therefore, we have to look for ways to cool the water with improvised materials.

Of course, it is good to have a split system in the apartment that cools the entire room to the desired level, but not everyone has air conditioning in the house. The water temperature can be lowered with cold water if you make a substitution. But this method does not last long. It is much easier to just freeze bottled water and use them when needed. This option also has disadvantages:

But even with these shortcomings, the method can be considered optimal. In addition, measures must be taken to saturate the water with oxygen.

For this you can:

Turn on the additional compressor.
Dilute hydrogen peroxide in a container, at the rate of 1 tbsp. l. for a 100 liter volume. This method will further disinfect the water.

Additional access to oxygen will make it easier for pets to endure heat, and will also delay the growth of bacteria. This will help organic waste be recycled faster so as not to pollute the water.

An important point when keeping underwater pets is to monitor the temperature of the water in the aquarium and keep it at a comfortable level.

IN natural environment there are no sudden changes in water temperature. Due to the volumetric area of the water surface, the water slowly cools and heats up. Fish have time to get used to and adapt.

If the summer is hot and the sun heats the water too much, then it is enough for hydrobionts to live at a lower depth and not experience sudden changes in water temperature.

Thermometers are used to measure the heat of a liquid. It is placed further from the heater, in the middle of the aquarium.

Thermometers are of 2 types by location:

According to the type of action, thermometers are divided into:

Glass thermometer with mercury indicator.
Liquid crystal thermometer (self-adhesive strip on glass).
Digital Thermometer.
Alcohol thermometer.

Find out in advance what temperature should be in the fish tank.

What should be the water temperature in a home aquarium

Most species are suitable for a temperature threshold of 22 to 26 degrees Celsius. More low rates are no longer suitable for warm-water inhabitants, but cold-blooded fish accustomed to cool water will be comfortable. If necessary, for tropical pets with high tolerance, the allowable temperature of keeping is increased by 2–3 degrees (for example, when males and females are stimulated to spawn).

Best of all, pets tolerate changes in the temperature of the water in the aquarium with a sufficient oxygen content in the water.

Temperature table for different types

For each type of pets, the water temperature in the aquarium is selected individually. For warm-water and cold-water inhabitants, it should be different. For example, goldfish tank temperatures are cooler, while cichlids tolerate different temperature ranges.

This table shows the constant water temperature for popular species of inhabitants.

Ways to maintain temperature

To maintain comfortable conditions and parameters, you will need devices that are sold in pet stores or available at home.

Tank heating methods:

Use of a special heater.
Using a heating pad with hot water.

Tank cooling methods:

Buying an aquarium cooler
Turning on the fan.
Maintaining the desired performance air conditioning.
Use of ice cubes.

Each aquarist decides for himself how to maintain the optimal temperature for the aquarium. When using heaters and refrigerators, the aquarist will achieve complete control over the readings of the thermometer, but this will come at a cost. It will be cheaper to use heating pads, ice, but if you make a mistake, this will harm the inhabitants.

How to help with deviations

Sometimes an aquarist overlooks a thermometer or equipment for heating or cooling fails. Don't underestimate the effect of water temperature on tank dwellers. It is important to quickly take action to return indicators to acceptable limits.

Overheat

If the thermometer indicates above 30 degrees, then the inhabitants have a high probability of dying.

With excessive heating, the main thing is to lower the temperature in the reservoir.

Reasons why the environment becomes very warm:

Direct sunlight.
Heat environment.
Excessive proximity to heating appliances.
Close proximity with a powerful lamp.
Incorrect reading of the water temperature control station for aquarium fish OK.
Lack of cover.

How to quickly cool the water in the tank:

Pour cold liquid into a bottle and dip into an overheated tank.
Point a fan at the surface of the liquid
Use a cooler or refrigerator for aquariums.
Add ice to water.

A dangerous consequence of an increase in the thermometer is the lack of oxygen in the water. Pets will experience a lack of oxygen. The inhabitants swim up and try to breathe air from the surface. To saturate the liquid with oxygen, the liquid must be constantly aerated. For a sharp increase in the amount of oxygen, compressors, hydrogen peroxide and oxygen tablets are used. After a while, the fish will breathe calmly.

hypothermia

When airing the room and drafts, the temperature drops rapidly.

To heat the liquid and maintain optimal performance, the following methods are used:

Use of a heating pad.
Pour boiling water into the bottle and dip into chilled water.
pour boiled water from a teapot. Be careful when pouring boiling water. The percentage of boiled liquid should be below 10.
Use an aquarium heater.
Replace some of the water with warmer water. But this should be done slowly, not to increase the degrees sharply.
Bring a powerful lamp to the surface.
Blow the surface of the liquid with hot air.
Use a weak boiler.
Catch and put the fish in an aquarium with warm water (if available).
Use alcohol if other methods fail. Add 1 tablespoon per 100 liter tank. Don't forget to change the water afterwards.

sharp drops

If the fish are able to survive a low or high thermometer without any problems, then sharp shifts will certainly cause diseases. Fish are sensitive to changes. The range of fluctuations of the thermometer should not be large in a short time. It often happens that when transporting fish, it fluctuated greatly. In this case, many inhabitants will not reach alive.

Why is the right water temperature so important?

Correctly selected fluid parameters for each type will help to avoid almost all pet diseases. Water temperature directly affects the quality of health and immunity. Therefore, the temperature regime must be monitored.

Place the container in right place, away from windows, radiators and air conditioners.
Get a heating pad.
Equip the tank with a thermometer.
Don't forget about aeration.
Use alcohol only in extreme cases.
The safest way is to drop the hot/cold liquid bottle.

With careful attention to pets and careful care, the parameters of the fish will always be at the optimum level. This will save the inhabitants from most diseases. Pay attention to this!

All life on our planet can exist only in the optimal temperature range. This fully applies to ornamental fish. What temperature should be maintained in a water house? How to create comfortable conditions for different types fish? These and other questions need to be thought about even before the start of breeding aquarium animals.

The development, vital activity and health of aquatic inhabitants directly depend on the state of the environment. And ornamental fish are no exception. The point is that the chemical biological processes their body is closely related to the temperature regime.

For example, heating water only 8-10 degrees above normal causes fish to increase their oxygen consumption. And in an excessively warm aquatic environment, the solubility of oxygen molecules decreases.

This factor in some cases can even lead to the death of the inhabitants of the aquarium. In such situations, they say that the fish suffocated.

That is why professional aquarists recommend not to deviate from the regime by more than 2-4 degrees.

Sharp temperature drops are also undesirable, which are possible if the house for aquatic animals is installed incorrectly: by the window on the sunny side, for example.

Optimal temperature

Most often, people keep fish in their home aquariums, whose homeland is tropical latitudes. The water temperature in such a climate practically does not change and is 20-26 degrees above zero. Approximately the same amount must be maintained in the aquarium by the owners of decorative domestic fish. True, for different species there may be some variations of the regime.

So, a normal climate for life must be constantly maintained. This is achieved with the help of special aquarium equipment.

Water heater for aquarium

If the aquarium is deep enough, then the water in its lower part is somewhat colder than at the surface. It is believed that the temperature difference should not be more than 2 degrees, and ideally water environment should be homogeneous.

That is why when heating water, the so-called rod heater is most often used. This simple device is structurally a hollow glass (or ceramic) rod, inside of which is placed a heating element- nichrome wire.

Using suction cups, the aquarium heater is attached vertically to the tank wall. Most models have an automatic heating control function.

The thermostat for the aquarium is very convenient: there is no need to constantly turn the device on and off.

Such devices are widely represented on the market. Here you can highlight the aquarium heater of the Polish company Aquael or the Chinese product of the XILong brand. Products of these manufacturers are produced both with and without thermostats (budget option).

Aquarium cooler

Often it is required to provide cooling of water in an aquarium. Such a need may arise at high room temperatures. For these purposes, special devices have been created - aquarium coolers. They come in two main types: air and water.

air cooler is essentially a compact fan with a temperature sensor. It is attached to the top of the rear window and drives cool air over the surface of the water, increasing the rate of evaporation of warm water.

Having cooled the water, the fan stops working at the command of the temperature sensor. low power consumption, low level noise during operation contribute to the widespread use of such coolers in small and shallow aquariums.

As an example, German-made portable cooling fans of the JBL Cooler series are characterized by high reliability and low power consumption. They are all equipped with a thermostat to adjust the duration of operation.

For large home or office aqua systems, as a rule, remote coolers. They are also called aquarium refrigerators. By their design, they are really compact refrigeration units, which very effectively cool the aquarium water driven through their system.

Devices installed near the aquarium are equipped with two tubes that are lowered into the tank. One tube is used to take in warm water, and the second is to release chilled water.

In the aquarium market, such devices are represented by the products of the Italian company Teco, the Chinese series of aqua-refrigerators HAILEA and Resun.

Forced adjustment of the temperature of the aquarium water is an absolute must. The choice of suitable heaters and coolers depends on the size of the aquarium, the room temperature and of course the budget of the aquarist.

Video on how to organize the cooling of the aquarium with your own hands:

Fish in the aquarium

What should be the water temperature in a home aquarium

In order for the inhabitants of home waters to be comfortable, the temperature there should be at certain level. And before you put a fish in your aquarium, you need to know what the natural conditions of its existence are (and most aquarium inhabitants come from the tropics).

The gradation of temperature parameters can be represented as follows:

optimum temperature an aquarium that will suit most fish is in the range from 220 to 260C;
the water temperature in the aquarium below the minimum optimum is no longer acceptable for warm-water fish;
temperature rise above 260 is allowed by 2-40C, if it is gradual.

Changes in temperature in a home pond in one direction or another from the optimal parameters are easier for aquarium inhabitants to tolerate if the water is sufficiently enriched with oxygen. The most difficult thing will be full fish - they need more air at any temperature difference. But with a sharp cooling, hungry fish will also suffer.

What should be done when the temperature drops

How to lower the temperature in a pond

Temperature must be monitored

For all living beings, including fish, the most important condition for existence is the ambient temperature. It affects not only the environment, but also the chemical and biological processes that take place in animals and plants.

As for aquariums, they should have approximately the same temperature in all layers, otherwise both plants and fish may suffer. Since the upper layer of water is always higher than the lower one, therefore, the temperature should be measured not only on the surface of the water, but also on the ground. The water temperature regulator in the aquarium can be purchased at the store, or you can make it yourself, but you can’t do without it when breeding fish. Because some temperature changes for many species of fish can be deadly.

Optimal aquarium temperature

There are no fixed numbers that fit every aquarium, as the temperature depends on factors such as its inhabitants, plants, and the chosen maintenance regime. Range temperature regime for most fish is between 20 and 30°C, however, for each individual fish species, the optimum temperature should be maintained.

So the best range of constant temperature in an aquarium for guppies varies between 24-26 ° C, but some deviations are allowed - 23-28 ° C. At the same time, if the temperature drops below 14°C or rises above 33°C, then the fish will not survive.

For catfish, the temperature in the aquarium is optimal in the range from 18 to 28 ° C. However, the catfish is an unpretentious fish, therefore it can easily withstand significant deviations from these limits, but for a short time.

The temperature in the aquarium for angelfish, in principle, has a wide range. Optimal is 22-26 ° C, but they can easily tolerate a drop in temperature up to 18 ° C, but you need to lower it gradually, without sudden changes.

The optimum temperature in an aquarium for swordtails is 24-26°C, but since these fish are not demanding enough, they will calmly endure a temporary decrease to 16°C.

The recommended aquarium temperature for cichlids should be between 25-27°C. Sometimes it can be increased by 1-2 degrees, but no more, since for most fish of this species a temperature of 29 ° C is fatal. At the same time, fish can tolerate a significant decrease in temperature even to 14 ° C quite calmly (of course, not very long time).

How to maintain the temperature in the aquarium?

The water temperature in the aquarium should be constant. Its fluctuations during the day are allowed within 2-4°C. Sharper drops can have a detrimental effect on the inhabitants of the aquarium.

Everyone knows that the temperature of the water in the aquarium corresponds to the temperature in the room. Therefore, when for some reason the room becomes excessively hot or cold, certain measures should be taken.

During the hot season, you will need the knowledge of how to lower the temperature in the aquarium. There are several ways to do this:

In the case when it is too cold in your apartment during the cold season, you should know how to increase the temperature in the aquarium. The simplest heater option is a hot water heater. It must be placed between the heater and the side wall of the aquarium. But this is an emergency way of heating water, since it will not work to maintain the temperature of the water for a long time.

Each of the methods of raising or lowering the water temperature is good in its own way, and you should choose a specific one based on your specific needs.

What is the ideal water temperature for an aquarium?

For all aquarium fish, the temperature of the water in the aquarium is important, so you need to monitor it periodically. For most inhabitants of the aquarium, a temperature regime in the range of 22-26 degrees is suitable. Discus and labyrinth fish need a temperature of 28-30 degrees, and goldfish - from 18 to 23. Of course, they can live at elevated temperatures, but over time, diseases cannot be avoided: most often, swim bladder dysfunction occurs in animals.

Make sure that there are no sudden temperature changes in the aquarium (more than 4 degrees). A gradual change is acceptable, but in no case abrupt. However, jumps occur quite often, and this is especially true for small aquariums, the capacity of which is less than 60 liters. This is due to the fact that a small amount of water heats up quickly, but cools down within a short time. So, for example, a window open for several minutes can greatly cool the water, and aquarium fish get chilodonellosis or a bacterial infection. If there is no thermometer in the aquarium, then the owner will not be able to find out about such temperature fluctuations, and the symptoms of the disease may appear very late.

In order to maintain the optimal temperature of the water in the aquarium at all times, you need a thermometer and a heating pad. Every aquarist should have a thermometer. It must be placed in the aquarium so that you can clearly see the temperature. This is important, because the faster a person sees changes and takes action. necessary actions- the less the inhabitants of the aquarium will suffer. IN Lately The choice of thermometers is huge, so everyone can choose the one that suits them best.

To maintain a constant temperature in the aquarium, you need a heating pad that heats the water up to desired temperature and then automatically turns off. If she has high level power, then the inhabitants of the aquarium are not afraid of drafts, temperature changes, or ventilation.

If you do not have the opportunity to constantly be interested in what the temperature of the water in the aquarium is, then you need a heating pad. The main thing is to choose a quality one, because otherwise it may not always respond to temperature drops, not turn on, or, conversely, when the water is warmed up, it will not turn off, and your fish may boil. To prevent this from happening, the heating pad needs to be changed periodically.

If you really care about your fish, then buy only proven products for them; do not rush to choose, consult with experienced aquarists, read product reviews and only after that make a purchase.

Water temperature is one of the determining indicators for the life and health of the inhabitants of the aquarium. What temperature should be in the aquarium depends primarily on the species that you plan to keep and breed.

For each species of fish or amphibians, there are optimal conditions for keeping. You need to familiarize yourself with them before purchasing the first specimens and placing them in a new aquarium. Such a preliminary acquaintance with one or another species will allow you to select fish that match the requirements for the conditions, which then get along well and seamlessly with each other.

Most of the most common and popular fish species will do well in aquariums with a water temperature of 22-26°C. Therefore, when setting the water temperature in an aquarium for guppies, angelfish and swordtails, you need to stay within these limits. Some fish species, but not too many, like warmer water. Usually, for labyrinth fish and dicuses, it is recommended to heat the water to 28–3 ° C. Goldfish are another matter. The water temperature in the aquarium for goldfish is set in the range of 18–23 ° C. In warmer water, their lifespan is significantly reduced, they can get sick.

Separately, it should be said about the temperature of the water in the aquarium for red-eared turtle, as keeping these amphibians is becoming more and more popular. Turtles love warmth and feel best in water heated to 25-28°C.

Temperature regulation in the aquarium

Constant monitoring of fluctuations in the temperature of the water in the aquarium will allow you to notice in time strong changes and react accordingly: heat the water to the required level or, conversely, cool it. Therefore, the purchase of a thermometer for an aquarium is simply a mandatory item for its arrangement. After all, water, especially in small aquariums, can cool down and heat up very quickly, and it will not be noticeable to the eye until the fish begin to behave sluggishly or die at all. Now you can also buy special heaters for the aquarium, which not only heat the water, but can also maintain the same temperature during operation. If the aquarium is not equipped with such a heater, then it can be purchased separately. When it is necessary to lower the temperature of the water, then it is necessary to pour out a small amount of it, and pour water of a lower temperature in its place. However, you should not replace too much water at once, as sudden changes in temperature will adversely affect the health of the fish. It is better to repeat the operation again after a while.

What temperature is comfortable for mollies?

Molliesia is one of the most beautiful viviparous fish from the pecilian family. Breeders did a good job and brought out different forms fish with different fins. Black fish are very popular. The body length of the female is about 8-10 cm, the male is 6 cm. Often, unscrupulous sellers persuade beginners to buy a fish, arguing that mollies are unpretentious and can live in any conditions, but this is not so. These charming fish love space, bright lighting and warm clear water.

One fish needs at least three liters of water. It is desirable to keep mollies in groups. These peaceful fish calmly relate to other inhabitants of the aquarium. For proper development, mollies constantly need fresh water.

Once a week, a quarter of the water is changed to fresh settled. The filter must be constantly running. It is worth mentioning that the water should be a little hard. To do this, put a piece of marble in the aquarium.

What else does mollies love? The water temperature must not be lower than 26 °C. In hot summers, the temperature can rise to 34 ° C, but this is not scary for the fish. They are much more difficult to tolerate lowering and temperature changes. In nature, mollies live in brackish waters. They are often seen in aquariums along with sea fish, and here in fresh water death awaits them.

Of course, the fish will not die immediately, but it will grow poorly and get sick. For 100 liters of water, it is necessary to dilute about 150 grams of sea or ordinary salt. Iodized salt "Extra" should not be used in any case.

Often aquarists kill their mollies by giving them only animal food. Young and adult fish need plant foods. They can be given scalded cabbage and dandelion leaves. Fish are happy to eat filamentous algae and generally love aquariums planted with aquatic plants. Feed adult mollies once a day. At good care these beautiful fish can live in an aquarium and please their owner for about eight years.

Optimal aquarium temperature

There are no fixed numbers that fit every aquarium, as the temperature depends on factors such as its inhabitants, plants, and the chosen maintenance regime. The temperature range for most fish is from 20 to 30°C, however, for each individual species of fish, the optimum temperature should be maintained.

The temperature in the aquarium for, in principle, has a wide range. Optimal is 22-26 ° C, but they can easily tolerate a drop in temperature up to 18 ° C, but you need to lower it gradually, without sudden changes.