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What is the compressor in the aquarium for?

maintenance, care, compatibility

All equipment intended for aquariums serves primarily to maintain the stability of an already established biosystem. Beginners aquarists tend to place too high hopes on equipment – they acquire expensive compressors, the best filters, but cannot achieve the desired results.

Why do the fish do not want to multiply rapidly, and the plants are sick and not in a hurry to grow? Despite all the connected first-class equipment, the aquarium does not accept the planned appearance.

This happens because the first thing to do is to wait for the ecological balance in the “neglected” aquarium, and only then turn on the additional equipment.

Filters and compressor for the aquarium do not solve the problems associated with the instability of the parameters of the aquarium. The question naturally arises: why, for example, the same compressor?

The compressor provides aeration – it contributes to the saturation of water with oxygen. Oxygen enrichment is achieved by the constant release of a stream of air into the water – from the side it looks like a constantly rising chain of air bubbles. (By the way, flowing bubbles significantly increase the aesthetic appeal of an aquarium.)

Continuous boiling water helps to equalize the temperature of the water. Suppose a thermostat is installed in an aquarium — then certain zones of water heat up more, while remote areas do not have time to warm up. A running compressor improves the circulation of water and helps to even out the temperature.

Water circulation in turn prevents water stagnation.

Whether a compressor is needed in an aquarium depends on the type of aquarium, the number of fish living in it and the number of plants. In a small aquarium with few inhabitants, a sufficient level of oxygen can be maintained by the plants, for a larger aquarium a compressor is needed.

Moreover, the greater the volume of the “reservoir”, the greater must be the capacity of the aquarium compressor.


The answer is obvious to everyone who has seen this device in operation: it increases the oxygen content in aquarium water. Water in a stationary state may eventually turn into a kind of swamp.

Remains of vital activity of small fish, grain of feed, dust, small debris, film on the surface, lack of oxygen can all lead to an unfavorable state of the aquatic environment.

And, as a result, to the disease, and in the worst case to the death of the inhabitants of the aquarium. The compressor, feeding air into the water, enriches it with oxygen, creates streams of air and water.

This process is called aeration, and such compressors are sometimes referred to as aerators. Simply put, this is an air pump

.The main requirements that must be placed on the device when choosing it

Often the aquarium is in the same room where people relax. Therefore, for the aquarium it is better to choose a silent compressor. This device operates continuously.

To reduce the noise level of the device, you can remove it into the cabinet. But then you need too long duct. Therefore, it is worth thinking carefully before making the compressor silent, by isolating it.

It is better to purchase a silent device at once. The air compressor for the aquarium is the most silent.

Compressors should have a smooth adjustment of the air flow. Such a device can be easily adjusted to a different number of filters and nozzles. Compressor capacity is calculated on the basis of the following parameters: 0.5 l / h per 1 l of water.

This is the way to solve the question of which compressor is better suited for a specific tank capacity. For a large aquarium (over 100 liters) use a piston compressor.

For such an aquarium, it is better to take a device with low-voltage power (12 volts). In the event of a power outage, it can be connected even with a car battery.

You can make a quiet compressor using old equipment by yourself. So, in order for a home-made device to work as quietly as possible, you will need a wooden box and a box from under the film.

In this case, a quiet compressor is obtained by compensating the shock wave with a jar. The very same homemade compressor hides in a wooden box.

Also compressors are adjustable and not adjustable.

How to install a compressor in an aquarium?

Install the compressor in the aquarium is quite simple. First of all, it is necessary to determine the place where it will be located. This may be the aquarium itself, a cover or a table.

The device is placed on top of the water, or below the water level, but then a non-return valve is always installed on the air duct. It is desirable that the aerator is located next to the heater.

So the heating water will mix, and the conditions for the fish will be the best.

When the noise of a running compressor causes discomfort, it should be placed on foam or foam rubber. This will reduce the noise, but will not give 100% of the result.

Some act cardinally: put the device away and stretch a long hose. Any compressor needs to be cleaned periodically.

If this is not done, the performance will decrease and eventually the device will break. Also pollution increase the noise level.

The first type of pump delivers air through the movement of special membranes that allow air flow only in one direction. Such an aquarium compressor consumes very little electricity and operates with low noise.

The main disadvantage of this device is low power. Aerator is not suitable for large containers.

However, for example, for a 150-liter home aquarium, a small membrane silent compressor will fit perfectly.

Another type of aquarium aerators – piston compressors. From their name it follows that air is pushed out with the help of a piston.

These aerators are more expensive, but their advantage is high performance and durability.

True, the noise level of reciprocating compressors is somewhat higher than in devices of the first type. Such aerators are usually installed in large aquariums or columns.

Home aerators of both types are both powered by household electrical network, and from batteries. Each aerator kit includes a flexible hose from which pumped air comes out.

What is a battery-powered compressor used for?

There are situations when urgent transportation of fish is required. However, do not deprive the fish of such important oxygen for them.

Otherwise, they may simply die. You can use the road device for a small aquarium.

Such equipment operates on batteries, which are very easy to replace at the right time. The battery-powered compressor allows you to protect against the death of fish that are outside the stationary aquarium.

Such equipment has small dimensions, so taking it with you on a trip is very convenient. A battery-powered device may also be necessary if the power is often cut off in the room. Such a device is recommended to keep in reserve absolutely all aquarists.

This is due to the fact that even short-term oxygen deprivation is fraught with fish for death. The question of how to choose a compressor, even experienced aquarists are asked. Choosing a compressor you need to focus not on its price category, but on the amount of water that it can drive in one hour.

It is desirable to acquire powerful silent compressors. You can use a homemade device.

Required compressor capacity depending on the size of the aquarium

Capacity of the installed compressor depends on the volume of the aquarium. Dependence is directly proportional – the larger the aquarium, the greater the performance of the compressor.

The optimum performance of the compressor is 0.5-0.7 liters of air per hour per liter of water. But, this is the bottom bracket. As a rule, it is recommended to purchase high capacity compressors.

Why? For example, you decide to install a second nebulizer in the aquarium. This, as you understand, requires additional power from the compressor and additional performance.

More powerful compressors must be purchased in those cases, if the aquarium is high. Here the compressor will need to overcome the water pressure. In addition, the compressor power depends on the diffuser.

The smaller the holes, the more pressure must be created by the compressor.

Compressor care, preventative maintenance

As an alternative to compressor You can offer an oxidizer. It is extremely simple in design and operation of the device.

It does not require the supply of electricity or the installation of batteries, and it is absolutely silent because only chemical reactions occur in it. The principle of operation of the oxidizer is the decomposition of hydrogen peroxide (H2O2) into water (H2O) and active oxygen (O), under the action of a catalyst.

As a catalyst, there are metals that, when oxidized, take a part of the active oxygen, and the excess oxygen is released into the water.

read also mollies.

Silent aquarium compressor: how to select and install

The answer is obvious to everyone who has seen this device in operation: it increases the oxygen content in aquarium water. Water in a stationary state may eventually turn into a kind of swamp.

And, as a result, to the disease, and in the worst case to the death of the inhabitants of the aquarium. The compressor, feeding air into the water, enriches it with oxygen, creates streams of air and water.

This process is called aeration, and such compressors are sometimes referred to as aerators. Simply put, this is an air pump.

Silent aquarium compressor installation is quite simple. The external aerator must be placed on the shelf or directly on the glass cover of the aquarium so that the length of the hose allows for aeration from the bottom up.

That is, the end of the spray hose (if any) was as close as possible to the bottom of the tank. Sprayer is advised to use to ensure that air bubbles are as small as possible.

In this case, the process of enriching the aquatic environment with oxygen is more intensive.

Some models of household silent compressors for an aquarium are supplied with suckers. This is very convenient, as the aerator can be securely attached directly to the glass wall of the fish house.

Of course, you must have a nearby power source (sockets).

To maintain biological balance, the aquarium will need help. It is necessary to consider each aquarium as a complex organism, the viability of which can and should be maintained with the help of equipment.

This refers to the basic equipment, which is necessary for each aquarium, and additional, which is installed at the request of the owner of the aquarium.

Compressors belong to the main equipment, as well as filters, water heaters, lamps. What kind of compressor is needed for an aquarium depends on the size of the “reservoir” – the larger the volume of the aquarium, the greater must be the capacity of the compressor.

The compressor aerates the water, i.e., saturates it with oxygen.

In the daytime, living plants absorb carbon dioxide and emit the necessary oxygen for plants and aquarium inhabitants. At night, both plants and fish become oxygen consumers, because in the dark time plants do not photosynthesize.

So, at night in the water increases the level of carbon dioxide – an additional influx of life-giving oxygen is needed. Compressors pump air into the aquarium water. From the side it looks like streams of bubbles that rise from the bottom of the aquarium.

The smaller the diameter of these bubbles, the more gas they give into the water. In addition, a running compressor improves the circulation of water, thereby equalizing the temperature in different zones. How to install a compressor in an aquarium

It is recommended to install the compressor so that it is above the water level and outside the aquarium. If it is not possible to install the compressor above the water level, it is necessary to additionally equip the device with a check valve.

The check valve prevents the flow of water in the opposite direction – after all, the compressor installed below the water level can start to receive water from the aquarium. So, if the owner does not want to repair his apartment and the apartment of his neighbors from the bottom, he must take care that the water does not flow out of the aquarium through the compressor in case of a breakdown or power failure.


Fish breathe oxygen and exhale carbon dioxide, which plants consume during the day of photosynthesis, releasing oxygen. Plants play a major role in maintaining the required amount of oxygen. Different plants supply different amounts of oxygen.

If the ratio of plants and fish in the aquarium is chosen correctly, then both gases are sufficient for them, and they feel great. If there are few plants and many fish, then the latter lack oxygen, in which case the aquarist resorts to aeration.

In addition, aeration is needed in nursery aquariums, when large quantities of fish are contained in a relatively small volume.

Aeration performs the following tasks:

  • Saturates water with oxygen.
  • Creates a circulation of water in the aquarium.
  • It equalizes the temperature in the whole aquarium.
  • Destroys the bacterial and dust film formed on the surface of the water.
  • Simulates the necessary environmental conditions, such as flow. These conditions are necessary for some species of fish.

But if you have a lot of plants in the aquarium, you can not use aeration. aeration is used to remove excess carbon dioxide. Our industry produces various types of micro compressors powered by AC power.

The drive in them is an electromagnet, which informs the lever connected to the rubber membrane, 50 reciprocating movements per second. They provide performance up to 100 liters per hour.

aquarium aeration

When you turn off the pump, water can rise through the hose and, if the pump is installed below the water level in the aquarium, then, according to the principle of communicating vessels, it enters the pump and spills onto the floor of the room. Vibro compressors need additional inventory – this is a hose and sprayer + suction cups, and clamps to adjust the air supply.

Foreign companies produce various air pumps with a capacity of 1 to 100 liters per minute. But do not choose too powerful compressor for your aquarium, because it can cause stress to the fish.

What volume of aquarium is one or another compressor usually indicated on the package. For example, the FAT-mini filter aerator is designed for an aquarium of 30-60 liters, no less than no more.

This filter aerator is the weakest of the FAT series, but its performance is from 50 to 250 l / h.

Many models are equipped with a built-in filter. Such compressors are very convenient.

The air in these compressors is mixed with a water jet directed back to the aquarium, this creates additional ventilation. They are installed directly in the aquarium.

Filtering materials from such filters are quickly contaminated and they need to rinse the filtering agent once a week.

Factors affecting the oxygen content in water

Quite often, an aquarium is installed in the same room where people relax. Therefore, you need to select a silent air compressor. The fact is that the operation of this device is constant.

Of course, you can use a homemade compressor for an aquarium. For example, the compressor can be removed in the cabinet (which you will need to do beforehand). However, this presents certain difficulties.

So, in the case of the cabinet, you also need to make a rather long duct. That is why it is better to immediately acquire a silent internal device.

If you still decided to make a silent compressor for an aquarium with your own hands, then you should stock up on a box from under the film and a wooden box. With the help of the box, the shock wave is compensated, and the air compressor itself is hidden in the already mentioned cabinet – a box made of wood.

When choosing a device also take into account the presence of a smooth adjustment of the air flow. If this adjustment is, then you can easily adjust the internal compressor for any sprayer and filter.

When choosing, you must also consider the size. So, for large aquariums, the volume of which exceeds 100 liters, a two-channel piston compressor is used. It is better that the device be low-voltage (i.e.

12 volts). Why do you need it?

A piston device with a power of 12 volts can be connected even through a conventional car battery.

Back to content

The installation process of the compressor in the aquarium is quite simple. It is only necessary before installation to choose the place in which the device will be located.

This may be the aquarium itself, for example, or the cover. And maybe the cabinet.

After selecting the location, the air compressor simply needs to be installed as instructed.

Back to content

Sometimes urgent transportation of fish is needed. But you can not leave fish without oxygen, because they can die.

This can be done by using small, battery-powered equipment for small-sized aquariums. Since the operation of such a device is based on batteries, they can be easily replaced at any time.

Such a device helps to save the life of the fish, if they do not live in a stationary aquarium. This device is convenient to take on a trip, because it has a small size.

The battery-powered compressor is needed by aquarists even if the electricity in the room is turned off. After all, even a small lack of oxygen can lead to the death of fish.

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