Black fish

maintenance, care, compatibility

Fish black telescope – aquarium pet with an original appearance. These are descendants of Carassius auratus – the well-known golden fish. Telescopes have a velvety coal body, a veil tail fin and large eyeballs.

Telescopes can be maintained in an aquarium where there are no decorations due to the possibility of eye injuries. The minimum number of plants and decor actually saves his life. Black telescopes prefer warm water, so they are best kept in a tropical aquarium.

Looks great in a white tank aquarium.

Black mollies – belongs to the family Perzilievye. A beautiful fish with a brilliantly blue body.

The length of the body reaches 10-12 cm. Behavior is peaceful, molly prefer to live in a small flock.

Some members of the breed may be stained non-uniformly. These mollies sometimes produce albino fry, or with a lighter body color. Molly are able to interbreed with the cilias, guppies and swordtails, bringing hybrid offspring.

These aquarium fish look very beautiful among green plants, against the background of white soil.

Labeo two-tone – a fish with a dark body and a bright red tail. Body size – from 10 to 12 cm. Body elongated, slim, flattened at the sides.

Above the upper jaw there is a pair of antennae. Algae fish, which with the help of a mouth-sucker scrapes algal growths from plants and other surfaces.

The fins are large – the dorsal fin is sharp and high, the ventral and anal fins are colored coal. The tail fin has a red tint. Character is active, territorial.

Good labo look on the background of light stones and wooden snags, which they love very much.

Look at the two-color labo in the general aquarium.

Ornatus black phantom – unpretentious aquarium fish. The body is small (4-5 cm), oval and flattened on the sides. Dorsal fin high, sail-like.

The color of the scales is silver-coal, the tail is dark, the ventral and anal fins have a coal “plaque”. This is a school ornatus, which can be kept in the company of several relatives.

Character mobile, peace-loving. For the maintenance of a small flock requires an aquarium of 50-80 liters.

The scalar black velvet is a breeding form of the scalar ordinary. Body color is intensely coal, eyes and fins are also black.

Good specimens should not have shiny scales. In the process of constant selection, the breed loses its original qualities.

Angelfish are peaceful fish, which from the age of the young can be kept with other fish. But the older they get, the more aggressively manifest their character.

It is recommended to keep in a pair, and in a specific aquarium. The veil forms of these scalar fins are longer.

Apteronotus, or knife fish – elegant aquarium fish, whose body length is 12-20 cm. The body is elongated, the ventral fin is long and well developed, for which the fish got its name.

The color of the body is black; there are several white stripes on the base of the tail. Apteronotuses are characterized by a peaceful nature, however, it is better to keep them alone. Fish are nocturnal, smaller neighbors perceive for food.

It is also not recommended to keep them in a pair (especially in a close aquarium), to their relatives show aggression.

See what a knifefish looks like.

Astronotus “Black Star” – different pronounced intelligence and interesting behavior. Aquarium fish astronotus – the favorites of many aquarists. Over time, recognize their owner, playful, can take food from the hands.

The color of the body is dark, on the scales are visible stains of orange or red hue. As representatives of the Cichlids family, they prefer to live in a pair, in a spacious tank among the rocky scenery. Descendants can produce green, white or red pigments.

It is recommended to be kept in a species aquarium, as small fish are perceived as food.

The black or black shark of the Labeo is a rather large aquarium fish up to 60 cm long. The dorsal fin is high, triangular in shape, with velvety black scales. The color of young individuals is silver-black.

Aquarium fishes of this species grow quickly, therefore with age they need spacious conditions of maintenance. The Black Labo is distinguished by its territorial character; it cannot be maintained with representatives of its own species. The best neighbors are cichlids, plexostomus, gourami, ball sharks.

Laboos are active during the daytime, swimming in the middle layers of water.

Molliesia (lat. Mollienesia): black, snowflake, veifera, sphenops, latypin – which of these types you name, they are all popular and common in an aquarium and belong to the same species, although they sometimes look very different.

And all due to the fact that they have a lot of advantages – they are peaceful, very hardy and unpretentious, inexpensive, and simply multiply. These are purely American fish, as they live in North and South America.

Wild species can be divided into two groups – with short fins, such as black molly and with long fins, for example, Velifer molyneziya or marble.

Most species appeared in aquariums in 1899, and various hybrids since 1920. Now you can find black aquarium mollies, snowflakes (completely white or yellow), silver, stained.

And the number of diverse species continues to grow and gain popularity.

For novice aquarists, the best choice is the usual black aquarium mollies, as it is less demanding, easier to breed and requires smaller aquariums. For the maintenance of all types you need a well-overgrown aquarium, quite spacious.

It is important that in their diet was a lot of plant substances and algae.

Mollies: content, types, compatibility, breeding, photo-video review

Reproduction and sex differences of male and female mollies

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.


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.


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

Black knife fish: content, compatibility, breeding, photo-video review

Feeding and diet: The apteronotus is a white-felled carnivorous and, under natural conditions, mainly feeds on insect larvae and fry of other fish. In terms of domestic content, in principle, nothing changes, they willingly eat both live and frozen food – bloodworm, strawberry, do not refuse to eat sliced ​​shrimps and squid, and of course they will not miss the moment to have dinner with fish fry.

For this, be careful when breeding your other aquarium pets, do not leave the fry in the general aquarium, otherwise they will have dinner. It is extremely rare to take dry food and substitutes. It is recommended to feed black knives before turning on the aquarium lighting, or after turning it off once a day.

Overeating for fish is extremely dangerous due to the structure of the intestines of fish. A blockage of the intestine can lead to its death, so it’s better not to feed than to overfeed, and in your aquarium, in any case, it will find something to eat.

When searching for food Apteronotus focuses on changes in the electromagnetic fields, fixed by special receptors located along the entire length of the body.

Feeding aquarium fish must be correct: balanced, diverse. This fundamental rule is the key to successful keeping of any fish, be it guppies or astronotuses.

Article “How and how much to feed aquarium fish” talks in detail about this, it outlines the basic principles of the diet and feeding regime of fish.

In this article, we note the most important thing – feeding fish should not be monotonous; both dry and live food should be included in the diet. In addition, you need to take into account the gastronomic preferences of a particular fish and, depending on this, include in its diet ration either with the highest protein content or vice versa with vegetable ingredients.

Popular and popular feed for fish, of course, are dry food. For example, hourly and everywhere can be found on the aquarium shelves of food company “Tetra” – the leader of the Russian market, in fact, the range of feeds of this company is striking. In the “gastronomic arsenal” of Tetra are included as individual feeds for a certain type of fish: for goldfish, for cichlids, for loricarids, guppies, labyrinths, arovan, discus, etc.

Also, Tetra has developed specialized foods, for example, for enhancing color, fortified or for feeding fry. Detailed information on all Tetra feeds, you can find on the official website of the company – here.

It should be noted that when buying any dry food, you should pay attention to the date of its production and shelf life, try not to buy food by weight, and also keep the food in a closed state – this will help avoid the development of pathogenic flora in it.

In nature, live: Black knives come from South America, live in slowly flowing, muddy, overgrown reservoirs of the upper and middle parts of the Amazanka river basin – Brazil, Colombia, Peru, Bolivia and Paraguay Parana River. The size of the fish reaches 50 cm.

Description of the black knife

Are nocturnal – carnivorous. They belong to weakly electric fish with passive electrogenesis. Due to the lack of good vision, they use their abilities to search for food, orientation in space and protection.

The content of these fish does not represent any danger to people and other inhabitants of the aquarium, it is necessary to take into account the proportionality with other types of fish. In captivity, the white-fronted Apteronotus reaches up to 40 cm. in length.

The body of the fish is black, stretched in length, flattened laterally, narrowed to the tail, the mouth is terminal, the head is large with a white spot, sometimes leaving a stripe along the back. On the long tail stem there are two white-yellow transverse strips, the tail fin is small. Dorsal and ventral fins are absent, adipose – filiform.

The anal opening is located closer to the head, next to the mouth. The anal fin is well developed, stretches from head to tail, with which the fish can swim in any direction (front, back, side) at approximately the same speed. In black knives, intraspecific aggression in the struggle for territory is acute, especially in males.

Therefore, it is recommended to keep them in a single copy, but if it suddenly happens that there are two or more fish of this species in your aquarium, then you should equip it with a sufficient number of shelters, but it will not do without fights anyway. Fish are scaleless, therefore they are more susceptible to diseases such as ichthyophthyriosis.

The treatment does not recommend the use of drugs containing zinc.

Breeding and sexual characteristics of the fish black knife: White-fronted Apteronotus – fish is quite difficult to breed. The first offspring was obtained in Leningrad in 1990.

It reaches its sexual maturity at the age of 1-1.5 years. Gender signs are almost not detected, the female is smaller in size with a more rounded abdomen, in males the presence of a fat cone on the head.

A spawning flock with a predominance of males, for this purpose, a spawning aquarium of 100 liters is taken. Pista or synthetic threads are suitable as a substrate. Spawning is stimulated by lowering the water level followed by an increase in distilled water, imitating the rainy season, the water temperature is 25-26 ° C, and the lighting is weak. It is recommended to install several nozzles that create a strong flow of water, spawning occurs usually at dawn in its stream.

The water in the incubator should be well saturated with oxygen. The female sweeps up to 500 large yellow, rather sticky eggs. After spawning, producers are recommended to be transplanted, otherwise the caviar will be eaten, the incubation period lasts up to 96 hours.

Fry appear that can swim and eat zooplankton. With proper maintenance and feeding, the young grow rapidly and by the month reach 5 cm and take the shape and color of adult fish.

Video about fish “Black Knife”

Swordtails know all lovers of aquarium fish. These beauties are very popular among aquarists. Since they come in different colors, they can decorate any aquarium.

Not every type of fish can boast with such multicolor, swordtails are red, yellow, gold, calico (red with black and white spots), orange and even tiger. But the most noble color of the swordtail is black, velvet, and I want to tell about it.

Homeland Sword North and Central America, where they live in the wild, and only green in color, they love the swamps, ponds, all reservoirs with stagnant water. At the beginning of the twentieth century, the fish were brought to Europe, and then to Russia.

The black swordtail was bred artificially, by crossing black black and green swordtails, the species was bred in Russia, in 1946 by aquarists V. M. Maranchak and G. V. Samokhvalov. In nature, black swordtails are not found.

These fish get their name because of the tail process in the form of a sword, its length reaches five centimeters. In aquarium conditions, dorsal and tail fins increased in fish.

Sword-bearers are viviparous fish from the family of kartozubyh. It is easy to breed these fish, as they do not spawn, but give birth to fry at once.

It’s better to put babies into a separate aquarium right away so that they don’t die. Plant algae in an aquarium, swordtail-fry prefer to hide in them at the beginning of their life.

In order to breed swordsmen successfully, it is best to plant one male and several females in an aquarium. The aquarium should be elongated, swordtails like long swims, mostly perform their flocks.

Females grow up to 14-15 centimeters long, they are much larger than males, males are 8-10 centimeters, but this size they reach only in very good conditions of the aquarium. Swordtails love to stay in the upper layers of water, they are heat-loving fish, but the water temperature should be no more than 25 ° C.

Swordtails are very fond of clean water, so you need to have a filter in the aquarium and change one third of the water once every two weeks. Basically they are unpretentious in the content, they can be advised for breeding to novice aquarists.

Aquarium swordtails should be kept in an aquarium closed on top, since swordtails are very mobile and sometimes jump out of the water, it is very dangerous for fish as they can easily jump out of the aquarium and die.

Black Sword, probably the most interesting and unusual of all the Sword, they are like black velvet shadows swim in the aquarium and, undoubtedly, are the decoration of any aquarium.

If you decide to make fish at home, you can safely buy the Swordtails, and of course, among them there should be a black swordtail, since you can watch him for hours, admiring his beauty.

О admin


Check Also

Barbus Sumatransky (Puntius tetrazona) – content, breeding

Barbus of Sumatran (Puntigrus tetrazona) BLEEKER, 1855. Despite the fact that the peak of hobby ...

Cardinal (Tanichthys albonubes) – content, breeding

Cardinal (Tanichthys albonubes) – one of the most popular aquarium fish. It has a bright ...

Microcollection Measure (Boraras merah) – content, breeding

Micro costing measure (Boraras merah) Kottelat (Maurice Kottela), 1991 It belongs to the smallest aquarium ...

Glass perch (Parambassis ranga) – content, breeding

Glass Bass (Parambassis / Chanda ranga) Habitat: inhabits stagnant brackish and freshwater reservoirs in India, ...

Tetra Palmeri (Nematobrycon palmeri) – content, breeding

Tetra Palmer or royal tetra (Nematobrycon palmeri) – A representative of the Kharacin family was ...

Black Barbus (Puntius nigrofasciatus) – content, breeding

Black Barbus (Pethia nigrofasciata / Puntius / Barbus nigrofasciatus) Gunther / Gunter, 1868, introduced to ...

Carnegiella Marble (Carnegiella strigata) – content, breeding

Carnegiella marble (Carnegiella strigata) GUNTHER, 1864 Since 1909, the species C. strigata (which at the ...

Orizias vovora (Oryzias woworae) – content, breeding

Oryzias woworae PARENTI HADIATY 2010. Rod Orizias (Oryzias) – Rice Fish. Orizias vovora is a ...

Golden Sturiosome (Sturiosoma aureum) – content, breeding

Golden Sturisom (Sturiosoma aureum) was opened in Colombia in 1900. In addition to the generally ...

Gourami marble (Trichogaster trichopterus) – content, breeding

Marble gourami (Trichogaster trichopterus “cosby / opaline”) Marble gourami – a decorative look, obtained as ...

Bolivian butterfly (Microgeophagus altispinosa) – keeping, breeding

There are many names of synonyms: Altispinoza Apistogram, Bolivian papiliochromis, Chromis Butterfly, Bolivian Apistogram. The ...

Blades (Gasteropelecidae) – types, content, breeding

Blades – family Wedge Brute (Gasteropelecidae) The family Gasteropeletsid includes three genera: Carnigiela (Carnegiella), Gasteropelekusov ...

Speckled otozinclus (Otocinclus flexilis) – content, breeding

Ototsinkly Mottled (Otocinclus flexilis) Habitat: Ototsinkly speckled inhabits both rapid and calm rivers with dense ...

Ternesia (Gymnocorymbus ternetzi) – content, breeding

Ternesia (Gymnocorymbus ternetzi) Boulenger, 1895.Family characide (Characidae). Inhabit the basins of the river Paraguay and ...

Chickens (Betta) – types, description, content, breeding

Family Belontidae (Belontidae). Indochina and Malacca peninsulas, Kalimantan islands, Sumatra and Java inhabit the area. ...

Botia dario (Botia dario) – description, content, breeding

Botia Dario (Botia dario) HAMILTON, 1822. Botsiya Dario – a very bright and beautiful fish ...

Wedge specks – types, description, content, breeding

Wedge specksRod Trigonostigma These fish are easily identified by their high, flattened laterally torso and ...

Piranhas (Pygocentrus) – types, description, content, breeding

Piranhas (Pygocentrus) Muller Troschel, 1844 Piranha from Guarani means “evil fish.” Detachment: Characteristic (Characiformes).Family: Characteristic ...

Tetra Amanda (Hyphessobrycon amandae) – content, breeding

Tetra Amanda (Hyphessobrycon amandae) GÉRY UJ, 1987. Hifessobrikon: from ancient Greek (hyphesson), which means “smaller ...

Aterina Ladigezi (Marosatherina ladigesi) – content, breeding

Aterina Ladigezi, Sunshine or Telmatherin Ladigez is a small but spectacular fish with an attractive ...

Botsiya dwarf (Yunnanilus cruciatus) – content, breeding

Botsiya dwarf striped (Yunnanilus cruciatus) Striped was first described in 1944. Names are synonyms: Yunnanilus ...

Sterba Corridor (Corydoras sterbai) – content, breeding

Sterba Corridor (Corydoras sterbai) – very bright and popular catfish aquarists. Known since 1962. Habitat: ...

Platydoras striped (Platydoras armatulus) – content, breeding

Platydoras striped (Platydoras armatulus) Valenciennes in cuvier Valenciennes, 1840 Platydoras: Platys = wide; doras = ...

Tetra Diamond (Moenkhausia pittieri) – content, breeding

Diamond Tetra (Moenkhausia pittieri) Eigenmann, 1920. Tetra Brillintovaya or Almaznaya is one of the most ...