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What light is needed for an aquarium

maintenance, care, compatibility

Aquarium lighting and choice of lamps, which is better to choose?

Duration of aqua illumination and options to facilitate control

In order for the aquarium to develop properly, and the plants in it develop well, it is necessary that it is illuminated correctly. Light is needed not only for flora, but also for fauna (fish).

Lighting allows them to develop properly. Light regulates vital activity, but correct lighting intensity does not always occur.

Too much light can cause intense algae growth and algal blooms in the tank.

What light is needed for those aquariums in which aquatic plants do not live? In such tanks it is necessary to reduce the intensity of light. To do this, you can take a lamp of lower power.

For containers 30 cm long, the lamp power should not exceed 10 watts. With such lighting, the movement of fish will be visible, and the inhabitants of the artificial home pond will feel comfortable. When choosing the intensity of illumination, you must consider the breed of fish

If albino fish live in an aquarium, then even a level of light would be dangerous for them.

For comfortable illumination in an aquarium with a green flora that does not cause stress in fish, a lamp with a length equal to the length of the aquarium is suitable. This is the best option for selecting lighting for shallow tanks.

For deep tanks, it is better to select a certain compromise that would create comfortable conditions for both flora and fauna. There are several solutions to this problem.

If there is not enough light in the tank for aquatic verdure, then fish species should be chosen from shallow reservoirs that are accustomed to bright light. In this case, the fish will not be dangerous bright light, and it will be useful for plants.

You can choose the types of underwater flora that do not need too bright light. Such varieties are well combined with the content of deep-sea fish.

They allow you to create conditions for life, close to natural.


You can pick up seedlings with leaves that can float on the surface of the aquarium and consume the right amount of light. The leaves will create a shade in which the fish will feel comfortable under intense light.

In this case, the arrangement of the aquarium should begin with the cultivation of underwater plants. As soon as comfortable conditions for fish are created in an artificial reservoir, it will be possible to launch them.

Then, in bright light, fish will be able to hide in the grown leaves of algae floating on the surface of the reservoir. Usually the plants grow to the desired size in two months.

For better growth of plants, while there are no fish in the tank, you need to add fertilizer to the soil or water.

When arranging an aquarium, you can pick up high and low species of plants, evenly distributing them in the pond. For starters, choose unpretentious representatives of the aquatic flora: anubiasa, cryptocoryne, elodea, javanese moss, vallysneria, aponogetony, riccia, bacopa, limnofily. You can make such an arrangement only in large aquariums.

For small volume tanks this option is not suitable.

Watch the video about unpretentious aquarium plants.

When setting the illumination, you can adjust the direction to which the light will go. The lamp is best sent to the places of intensive plant growth. So you can equip the backlight in large containers.

Water areas free from aquatic flora should be decorated with snags or stained oak, which will create shaded “islands” that are close to the natural habitats of fish.

For comfortable conditions of plants, you should create a twilight mode, which happens in the wild. This is the time when the sun sets slowly, peculiar to different climatic regions.

Even tropical species of flora need twilight. Too abrupt transition from light to dark causes stress in seedlings. In wildlife, the processes of lighting and darkness smoothly transform into each other.

This must be taken into account when creating the illumination of domestic aquariums.

If the light is turned off and turned on abruptly, then the plants will drastically change the mode, they will not have time to adapt to new conditions and will change their appearance. Many species, even photophilous, need shading for a comfortable life. They are often in bright light trying to roll the leaves, and fall into the shadow of the aquarium.

It should be remembered that harsh darkness is also dangerous. If night shade-loving species can survive the day in the shaded corners of the reservoir, then light-loving ones simply cannot develop in dark water.

Therefore, it is necessary to consider a smooth transition from light to dark.

To create twilight conditions in the tank, turn on the room lighting before turning on the lamp. 15 minutes is enough for the plants to be able to go from day to night to living.

For rooms with good natural lighting in the summer, this is not necessary. When observing the aquarium at this time, you can see how some species of plants are activated in a state of twilight.

When the light appears, the bakopas begin to turn the leaves and blossom.

The best kind of lighting for aquarium is natural. If the container is standing next to the window, then the plants in such an aquarium look very beautiful due to the fact that they have enough natural light.

But natural light of a temperate climate zone is not suitable for all types of flora. Tropical plants will definitely need a regulated additional lighting – side or corner.

The number of light days for light-loving species – 11-12 hours.

It must also be remembered that the sun does not always shine equally brightly. There are cloudy days, and the light then falls. When the light of the sun is too bright, it is also not very good.

The water is heated in the sun, and the plants feel uncomfortable. In the strong light of the sun, the water in the aquarium may bloom, the plants will begin to grow strongly, taking away free space from the fish.

In the evening the sunshine will also be missed for lighting the aquarium.

Regulate the natural light you need with the help of artificial lamps. It must be remembered that the main part of the light in an artificial reservoir must fall through the top.

With proper alternation of natural and artificial lighting of the reservoir, it is possible to create comfortable conditions for both fish and aquatic plants.

So, acquiring an aquarium, it is necessary not only to have knowledge about maintaining water temperature so that the fish would be comfortable but also to know and understand exactly how to feed and care for the bottom inhabitants. Also, it is not unimportant to have knowledge about the lighting in the aquarium.

In ready-made aquariums purchased at points of sale, namely, in markets and zoological stores, they are supplied in lamp kits of the aquarium spectrum corresponding to the normal life.

Remember that any lamp can not be screwed into the aquarium. Not all of the white light emitted by a lamp can have a beneficial effect on the life of plants and inhabitants.

Everyone knows that white color consists of a whole set of colors, such as red, blue, yellow, green. The predominance of any of the constituent colors affects the light.

Based on the above written, it is necessary to make a choice what kind of light is needed for the aquarium.

For plants, as well as possible, suitable lamps emitting white light. Of the spectral component and the predominance of blue and red.

This is necessary so that the plants do not die and become covered with unpleasant green mucus. Therefore, when choosing a lamp, if the previous one has burned out, study the information provided to the manufacturers on the characteristics of the work of this production site.

You can also ask the professional breeders what kind of lamp company they prefer to use when maintaining and lighting their aquariums. If you are constructing a lighting with your own hands, choose fluorescent lamps in the light of which the colors of the red-blue spectrum predominate.

So, what kind of light is better for an aquarium, we understand on the basis of the proposed information.

But the conversation was mainly about fluorescent lamps, it is also necessary to pay attention to energy-saving lamps. They are gaining particularly strong popularity in recent times with a number of positive qualities and advantages over ordinary lamps.

Choosing an energy-saving lamp, pay attention also to the spectral indicators.

This type of characteristic is suitable in which the lamp should emit light in a red and yellowish gamut. In addition, plants lining the bottom of the aquarium need ultraviolet light in order for photosynthesis to occur at the pace they need.

UV lamps are different. It is necessary when choosing to pay attention to the characteristics of the lamp and choose those that emit a soft, non-aggressive ultraviolet, which has a beneficial effect on all life.

Which lamps are better suited for a plant aquarium?

Aquarium lamps are needed to create a lighting cycle in the aquarium that is close to the natural environment of fish and plants. Lamps should emit waves of the desired length, and not promote the reproduction of algae.

Special aquarium lighting devices create the correct imitation of daylight. The recommended amount of daylight hours is 10-12 hours for many species of fish and plants.

In saltwater aquariums, imitation of light is created using nighttime aquarium lamps.

All types of lighting devices have different intensity of illumination, which can affect the well-being of the inhabitants of the reservoir and their life cycle. For fish and plants that come from tropical forest waters, you do not need a lot of daylight.

But there are also such organisms that require strong daylight – these are endemics of shallow tropical rivers with clear water and sea inhabitants.

These days, different types of aquarium lamps are sold. But which is better to choose?

The most versatile and affordable are ordinary incandescent bulbs with a tungsten filament and a screw base. For aquariums with fish and plants, they are not particularly suitable because they can burn the leaves of plants and heat the water very much. For aquaterrarium with turtles, they are more suitable because they imitate sunlight.

For a long time they can not be included, otherwise living organisms will suffer.

Incandescent bulbs are good to use in fish pools. But their color spectrum reaches 2700 Kelvin (K), starting from the red mark of the spectrum and ending with yellow. Such light provokes the reproduction of cyanobacteria that form algae.

They consume a lot of electricity, emit a large amount of heat. For permanent use in the aquarium will not work.

Watch a video about aquarium lighting.

What are the most common lighting fixtures in home aquariums? Fluorescent diodes can produce light over a large surface area, do not emit much heat.

However, they are non-compact and do not have intense power. These types of lamps can be sold in different versions of the spectral range.

Lamps of samples T8 and T12 are considered standard for room lamps, sample T5 can be used in special lighting devices.

The advantage of T5 lamps is their intense illumination of a small area of ​​space. To give light to the aquarium with depth, where there are reefs and plants, you should use a fluorescent type of lamp, which have high luminous efficiency.

They are designated as HO (High Output) and VHO (Very High Output).

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