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Unpretentious aquarium fish for a small aquarium

maintenance, care, compatibility

The most unpretentious and small aquarium fish with photos

I think many aquarium fish experts will agree that the first place is given to guppes.

Everyone probably knows these fish … even those who have never seen aquariums. We can say that these fish are the fish of all children of the former USSR (they were in all Soviet aquariums))). The fish is very beautiful and unpretentious.

The tail fin is her beauty. The simplicity of the fish is that it can withstand “difficult conditions of detention.” I happened to see an aquarium with guppies. without aeration, without filtering, without plants, without proper feeding etc. – horror, terrible dream aquarist.

Nevertheless, guppies managed not only to survive in such an aquarium, but even tried to multiply. So to mock the fish of course not worth it.

But their endurance and vitality sometimes affects.

GUPPI – THIS IS A SYMBIOSIS: BEAUTY, INSENSITIVENESS AND EASY + SUPPLEMENTS REPLACE ARE “LIKE A KROL” INDEPENDENTLY – YOU WILL ALWAYS BE UPDATED OF “AQUARIUM PAINTS” Read about the GUPPI read more

2nd place Swordtails

A very famous fish, as a result of persistent selection, a large number of swordtails of various colors and shapes were bred. Males differ from females by the presence of a “sword” on the lower edge of the caudal fin.

Swordtails are kept in flocks in a densely planted aquarium. The minimum size of the aquarium from 10 liters (but better is more).

A good volume of aquarium for a small group of swordtails is 50 liters.

An interesting fact about these fish is that the female swordtail can, at some point, become a male, i.e. change the floor. This is due to the struggle for the survival of the species.

HOW AND GUPPI ARE RECOMMENDED, ALL THOSE WHO DO NOT WANT TO DEAD WITH THE AQUARIUM.

Read about swordsmen more in detail here.

3rd place Somiki corridors

It should begin with the fact that all aquarium catfish – a priori unpretentious. Moreover, they are “orderlies of the aquarium world”: they clean the soil and eat the remnants of life activity.

The corridors are chosen from all catfish, since in addition to the gill, they have intestinal respiration, those. if aeration stops, they will live for a long time.

The fish are very peaceful, calm. They slowly swim along the bottom in search of food. In the aquarium they are usually kept in flocks.

Fish, do not pose any threat to other inhabitants of the aquarium.

You can read more about CORRIDORATUS here.

4th place Mollies

Molly, like guppies – viviparous fishes. Unpretentious and tolerant of poor conditions.

Nevertheless, they are more capricious than the “troika of winners”.

Fish suitable for beginners and young aquarists. The fishes most difficult to keep from all members of the family are demanding of their conditions, they do not tolerate low temperatures, some like “salty” water, like bright light, etc.

You can read more about MOLLINESIA here.

5th place Tetras – Harazinki

All tetras are small, brisk, not capricious fishes. However, they will not be able to survive in “Spartan conditions” as guppies. They need aeration and filtration.

You can keep them in an aquarium by a group (from 5 individuals) with a volume of at least 35 liters of water.

You can read more about TETRAH here.

6th place Ternetsii

Very famous little fish. Fish energetic, mobile.

Fish get along well with other types of fish. Somehow my terntions even lived with small cichlids. Recommended aquarium with a volume of at least 30 liters of water, densely planted with plants.

Aeration, filtration – yes!

You can read more about TERNIA here.

7th place Danio (rerio, pink)

Starting from the 5th place TOP, all the fish require unpretentious attention. Tanks are different from them – briskness and speed of movement.

They can coexist with many species of fish, even with fish of medium and increased aggression: scalar, goura and even with small cichlids.

Read more about DANIO here.

8th place Torakatum

One of the famous large catfish of the aquarium world and excellent attendants of the aquarium. Peaceable and unpretentious to the content.

They can be kept in a common aquarium with thickets of plants and a large number of shelters. Fish, do not pose any threat to other inhabitants of the aquarium.

Compatible with all kinds of fish. The neighbors are not recommended only one hundred percent aggressors and predators.

You can read more about TORAKATUM here.

9th place Gourami

Gourami – are medium sized fish. Entered in this TOP due to gill labyrinth – fish do not need aeration, they breathe atmospheric air.

Really peaceful fish, but sometimes aggression. Some individuals taken separately are even very aggressive, as they say, as lucky.

You can read more about GURAMs here.

10 place Barbus

Barbusses are schooling, small fish that can stand up for themselves! If you decide to start a barbus, I recommend to allocate for this a separate aquarium, “barbusyatnik.” “Pirate” temper, the ability to stand up for themselves – deserve 10th place.

You can read more about BARBUSH here.

Of course, the above TOP is conditional – always remember the words

Antoine Marie Jean-Baptiste Roger de Saint-Exupery

“We are responsible for those who have tamed”

We also recommend you to look at the colorful brochure “Popular types of aquarium fish”. This brochure contains all popular types of fish, with a description of their conditions of maintenance, compatibility, feeding + photos.

(to view or download, click on the image)

An interesting video about unpretentious and small aquarium fish

Additionally, we invite you to view a large photo collection of small and unpretentious aquarium fish

Many undemanding fish can easily breed in aquarium conditions. The only exception is haracin, which breeding is only possible for experienced aquarists. For beginners in breeding recommended all types of viviparous toothed fish.

And speckled catfish, antsistrusy can easily spawn in the general aquarium. Also easy to breed danios and barbs.

Labyrinths build foam nests, and cichlids bear offspring in the mouth.

However, in order to be sure of the safety and comfort of spawning fish, it is better to provide them with a separate aquarium and find out if they have a predisposition for cannibalism in order to avoid the death of their fry.

Aquarium pets, which are easy to maintain, pose no problem for responsible beginners in the water world. But the lazy owners of the aquarium will have to comply with the conditions necessary for the normal functioning of the fish, such as clean water and timely feeding, as this will depend on their lifespan.

Otherwise, even the most unpretentious fish will not be able to stretch for a long time.

Care of a small aquarium, on the one hand, easy, and on the other, takes the hassle. Choose a mini tank rectangular, with straight and smooth walls. It is convenient to clean them with a scraper, to maintain.

If the tank is round, then it will be inconvenient to reach its corners, it is difficult to wash. A 10-liter aquarium pollutes faster than a 50-100-liter aquarium.

Water changes will have to be done more often, as well as comprehensive cleaning, which is not useful for the biobalance of the aquatic environment and the health of the fish.

The main disadvantage of mini tanks is a small amount of water. It does not fit a lot of fish. There you can settle 1-2 fish, and no more.

In a large aquarium, water changes are not strongly felt, in a small one this is a great stress. Any changes in the biological balance: fish death, overfeeding, pollution immediately affect the aquatic environment.

The only thing that can be done is to adjust the water parameters in time, feed the fish gently, clean the bottom.

See how the ground siphon in the nano aquarium.

To care for a small aquarium should be the same as for a large one. Once a week you need to change 10-15% of water, if necessary. So that the fish do not have stress, do not replace the water completely, try to add it in small portions.

The ideal aquarium filter for such a tank is a pump with an internal sponge. The sponge cannot be washed out under running water, otherwise all beneficial bacteria participating in the nitrogen cycle will die.

If you choose the smallest reservoir, then it will be almost impossible to install plants and decorations. Some skillfully planted even in 3-liter jars of dwarf plants, but it is inconvenient to take care of them. In the 10-liter tank there is the possibility to hold a dwarf anubias, a dwarf arrowhead, an echinodorus “dwarf amazon”, a dwarf cryptocoryne.

Plants for a small aquarium are able to control the level of nitrite, nitrate and ammonia, create shelters for fish. Make sure that the aquarium was the ground.

Choose a substrate treated, clean, without paint. Remember that using a regular scraper to clean aquariums of minimal size is very difficult from the layer of plaque.


Now about feeding. As you know, overfeeding harms not only the health of the fish, but also adversely affects the quality of water.

All uneaten decays, turning into harmful impurities and bacteria. Decay products are deposited on the bottom and reservoir machines, disturbing the stability of the biological environment.

Fish should be fed, hunger is also not an option. Once a week, arrange fasting days for fish.

Add food to 4-6 grains, which pet is swallowed by force. What is not eaten, you need to remove the gauze net.

Let’s for fish that live in a small 10-20-liter nursery as much feed as they eat in 2-6 minutes. Flakes, live food, sinking granules fit.

They sink slowly and do not pollute the environment. If you live on bottom catfish, they will eat everything on their own.

Fish can be fed to their usual high-grade food, without disturbing the diet. It is important to clean everything in time.

See how to make a small aquarium.

Although the majority of small fish are rather unpretentious, leaving for the first time of their life will be troublesome. At first, water will need to be replaced frequently in order to stabilize the number of bacteria.

Standard water change should be done every 3-4 days, at the same time not less than a quarter of the volume should be updated.

Do not put such an aquarium near the window: the sun’s rays will provoke the growth of algae.

A few words about the form. When it comes to a small aquarium, most aquarists clearly state: just not round! Curved walls in a small container strongly distort the image of the fish, and at the same time, a strong distortion of the external environment will also become a stress for the little fish.

From a practical point of view, it will be very difficult to clean glasses of this shape.

Dwarf parsing

There are a few simple rules for choosing small fish in small aquariums. All of them take into account both the peculiarities of the fish themselves and the specificity of a small volume of capacity.

  • Do not purchase predators for a small aquarium, no matter how miniature they are. And in general, turning to the pet store for a choice of fish, be sure to check the size of the adult.
  • No matter how much you want luxury and exclusivity, you’d better not stop your choice on expensive fish. Small aquariums are very unstable in terms of temperature, and fragile, expensive specimens are usually the most sensitive to such fluctuations, for them the slightest change will be fatal.
  • Too many fish are also wrong. There is a classic rule here: there should be at least 3-5 liters of water per fish of about 5 centimeters in size.
  • Pick a similar nature of the species. If you move mobile and very calm fish together, there will be no balance in the aquarium. Some of its inhabitants will experience extreme stress. Naturally, it is absolutely not necessary to settle territorial fish in a small aquarium together with other species.
  • The best option for a small aquarium – the neighborhood in the water layers. Some of the fish may belong to bottom species, their neighbors – to enjoy life in the middle layers. With them you can also inhabit the species that prefers to inhabit the surface.

Nannostomus nitidus

Preliminary preparation before the acquisition of small fish

If you have enough space and money to install an aquarium of any acceptable size, as well as the necessary equipment to ensure the life of the fish, you can proceed to the next heading of this article.

If you are cramped in something, then you need to define your desires, given that small aquariums are much more difficult to maintain than large ones, but the latter require more time for maintenance. For example, a 100-liter aquarium will suit a novice aquarist better than a 50-liter aquarium.

A large aquarium is simpler and better kept for several reasons:

1. Water temperature and quality are more stable.

2. The impact of adverse factors on the fish takes longer, which gives the novice aquarist the opportunity to influence them in a timely manner. For example, in winter time, the water heater broke, the cooling process is slower and you can manage to get off and buy a new one before the fish get cold.

Or ampularia died from old age in the thickets of a small aquarium, the water became dull, the smell appeared, fish began to die. In a large aquarium, this process will occur many times slower and you can remove the dead snail from the can without harming the fish.

3. In small aquariums there is little space for free swimming, and, accordingly, not every favorite decor can be placed in it.

4. Ample opportunities for design and decoration.

5. A large aquarium can hold a lot of large fish or a large number of small ones, it allows you to contain various types of fish.

With all the advantages of large aquariums, it is sometimes not possible to install it. Small aquariums are great for apartments, country houses or hostels, as well as for the second floors of private houses.

Large aquariums weigh a lot, they are difficult to transport, take up more space, and in unforeseen circumstances cause more damage.

The biggest advantage of a small aquarium is a financial issue. Aquarium, equipment, scenery, soil, plants, the cost of electricity, the treatment of fish cost much less.

Before acquiring you need to properly assess the benefits of both large and small aquariums. Answer yourself to the question: “What volume of aquarium would you like and is there an opportunity to contain such a volume?” If finances are not important and you do not often move, then the choice is obvious. And if you do not want or can not afford a large aquarium, then a small aquarium is what you need for you.

In any case, the main thing – comfortable conditions for the maintenance of fish.

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