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Swordsman Fish

maintenance, care, compatibility

The sword-bearer (Latin Xiphophorus hellerii) is one of the most popular and unpretentious fish in the aquarium.

The first swordtails appeared in aquariums back in 1864, and since then have not lost their popularity. The long outgrowth on the lower fin in males, like a sword, gave it a name.

But not only for this they love the Swordsman – he is unpretentious, handsome, very diverse in color and easily reproduces.

Swordtails in general are quite peaceful fish, well suited for general aquariums. But, they have very different characters, and he can be both a quiet and timid, and a cocky bully.

Especially males can be aggressive towards each other.

Swordtails are best kept in aquariums with lots of plants and free swimming. Floating plants will create diffused light and provide shelter for fry.

Like many live beetles, swordtails can live in brackish water, but this is not necessary.

You can feed them with cereal, live or frozen food, and other feed for aquarium fish. Like all fish, swordtails need a varied diet. It is especially important to feed them with plant foods that are high in fiber.

The fact is that in nature, thin and fragile algae constitute a large part of the diet of the Swordsmen and other fouling. In an aquarium, this amount of algae will be superfluous, but you can always buy flakes with a plant component.

You can make these flakes the basis of the diet, and live food additional nutrition. Live food can be given any, swordtails completely unpretentious.

Swordtails – viviparous fish, that is, the fry they appear not in the form of an egg, but fully formed. The male fertilizes the eggs inside the body of the female, and she carries them to full maturity. Usually this period lasts 28-30 days.

Actually breeding Swordsmen at home is not easy, but elementary. The young male is constantly active and pursues the female, in fact, all you need to do is to take her away regularly.

As for other viviparous (guppies, mollies), it is very easy to get fry from the swordsmen. The female can even give birth to fry without a male, the fact is that she can keep the male’s milk in a frozen state and fertilize themselves with them … So if suddenly the female gave birth to fry and there is no male in the aquarium, this is exactly the case that worked.

Sword bearers of spores for reproduction and sometimes the only thing that needs to be done is to raise the temperature in the aquarium to 25-27С. The level of ammonia and nitrates at the same time should be kept as low as possible, and pH 6.8-7.8.

When the female gets full, watch the dark spot near her anus. When it darkens and the female recovers significantly, it means time for giving birth soon.

This is a dark spot, in fact, the eyes of the formed fry, which shine through her body. You can leave the female in an aquarium, but the fry will survive very little, since other swordtails are very active in eating it.

If you want to survive as many swordsman fry as possible, it is better to transplant the female. Whichever option is chosen, the main thing is that in the aquarium there were a lot of thick bushes.

The fact is that childbirth of the swordtails gives birth best of all in such thickets.

The fry of the swordtails are large, active and hungry. What to feed the swordfish fry?

You can feed the egg yolk, finely grated flakes and naupililiy Artemia. It is better to add spirulina or flakes with fiber in the diet.

The combination of spriulin + live food and your fry will grow very fast and bright.

Sword-bearer of aquarium fish: content, compatibility, reproduction, photo-video review

Swordtails are not aggressive. They are compatible with almost all small peaceful fish.

Among the best neighbors are tetras, minors, terntions, danios, all fish, etc. They are compatible with almost all bottom fish: corridors, akantoftalmusy, platidorus, ancistrus, bag-tailed catfish, etc.

Get along well with peaceful and not large cichlids, for example, with scalars.

Sword-bearers are not compatible with aggressive and large fish that will hunt them, for example with cichlids (Akara, astronotus, diamond chichasomes, etc.). In addition, it is not recommended to push them to the “veil” fish, because they are slow and swordtails can “pinch” them for fluttering fins.

Males of the Sword show some intolerance and aggression towards each other. Cases of males fights were noted up to causing lethal damage to each other. Therefore, in one aquarium should contain only one male, or several at once (but not a couple!), Plus the same or more females.

In this case, the intraspecific aggressiveness of the fish is markedly reduced. There are a lot of local conflicts in this case, but their heat is relatively low, and the absolute winner, who would then no longer give anyone a pass, would not be revealed.

See article compatibility of aquarium fish.

Requirements for the care and conditions of the swordtails

One of the most popular exotic domestic fish is the old-timer of many aquariums and the favorite of not only experienced, but also beginner aquarists – the swordtail. Xiphophorus Helleri was liked by many breeders for its cheerful disposition, mobility, variety of shapes, types and colors, as well as unpretentiousness to living conditions.

Nevertheless, some of the subtleties of the maintenance and care of these fish will not hurt to learn, and this article will help with this.

Central America, South Mexico, Honduras and Guatemala are considered the birthplace of the Sword. These fish have chosen there overgrown reservoirs with slow or standing waters.

In nature, only green swordtails are found, and all aquarium species are bred artificially by breeding and crossing with petillia.

The fishes were brought to Europe by doctor and botanist B.K. Geller

They received their name for the xiphoid growth on the caudal fin, which is available only in males (translated from the Greek xiphos – a sword, phoros – bear).

Aquarium swordtails have a body of 5-8 cm, extended in length and compressed from the sides. Their mouths are slightly twisted to make it easier to take food from the surface of the water. The females are larger with noticeable belly and rounded fins, dimmer in color and do not have a sword on the tail fin.

With good care, these fish can please owners up to five years, which is considered the average life expectancy.

Originally, the swordtails had only a brownish-olive color with a silver sheen, a pale reddish band along the body and a yellow, red or green sword. But today many varieties of black, lemon, and red have been bred, there are even spotted individuals.

Experienced breeders with fins, as a result of which appeared fish with elongated fins and even with two swords.

If the aquarium is overpopulated with female swordtails, they can change their gender to male. At the same time, the xiphoid process grows in them and gonopodia appear on the anal fin.

Males do not possess the gift of reincarnation.

Now, having studied the characteristics of keeping and caring for the swordtails, even beginner lovers of these fish will be able to create ideal conditions for their pets.

For those who do not like to read, we offer to watch a video about the contents of the Sword in the aquarium:

The Sword-bearer (Latin Xiphophorus hellerii) is a freshwater fish of the Petsilievye family.

The first aquarium fish, the swordtail, appeared in the houses of Europeans in the middle of the 19th century. Thanks to endurance, unpretentiousness and simplicity of the maintenance, the swordtail is still popular as a pet.

The red swordtail is a hybrid form of the green swordtail and red plagus. It is characterized by a bright shade of scales, the red pigment has turned out as a result of strict selection of adult individuals. Fish care is simple, it easily adapts to the general aquarium.

Water temperature for content: 22–25 ° C, pH 6.5–7.5 pH, medium hardness.

The green swordtail is a beautiful aquarium fish that was brought in from Central America. The body is elongated, narrow, flattened on the sides.

The color of scales is olive-brown, or grayish-yellow with green tint. A horizontal strip of violet hue passes through the body, parallel to it are 2 more narrow stripes. Brown splashes are visible on the dorsal fin, the male sword on the tail shimmers in a green, blue color.

A pure green swordtail can only be found in nature; today it has become the material for creating many hybrid breeds. The content of the fish is also simple – it is perfectly acclimatized in captivity.

The black swordtail is a descendant of the green swordtail and black plagus. The body of the body is long and narrow, the color of the scales is velvety black, it shimmers with a blue tint. Silver eyes with dark pupil.

Breeding of this breed is quite problematic, since the female can become ill with melanosis – excessive pigmentation of the skin. Sometimes the female may be infertile, so breeding is likely with proper water parameters.

To avoid the degeneration of the breed, females can not be crossed with males of other breeds. Beautiful specimens are obtained with the standard crossing of the green swordtail and the black plaza.

Calico swordtail – got its name due to the triple color of scales. On a white background scattered black and red blotches.

Breeding is also problematic – to display calico color is quite difficult. Nowadays, aquarium lovers are trying to use the breed of placium and “mechikov” for optimal results, but so far this is not possible.

The rainbow Xiphophorus hellerii is a hybrid breed obtained by crossing white Bulgarian Bulgarian swordsmen. The color of the scales is gray-green, with an orange tinge, red-brown stripes are seen on it.

The fins are painted in a red-orange tone.

Tiger red-speckled Xiphophorus hellerii – the breed was bred in the 40s of the twentieth century in Moscow. The color of the scales is ruby, there are black spots on it. The lower rays of the tail are long, melanosis is rare.

When breeding a breed, it is advisable not to choose fish with pure black tail fins and a black part of the tailpiece.

Contain Swordsmanin in aquariums it is easy enough because of their unpretentiousness to the composition and volume of water. One pair must be at least 6 liters of water.

Aquarium needs a long, with a lid (can jump out of the water).

Optimum water parameters: temperature 22-24 ° С, dH 5-20 °, pH 7.0-8.0. Requires strong aeration and filtration. Once a week it is necessary to replace water by 1/3 of the volume.

It is recommended to add sea or table salt to water: 1 tbsp. 10 liters of water.

Thick thickets of small-leaved plants (for example, notched elodea, cabomba, wallisneria) are perfect for an aquarium with swordtails. But free space for swimming fish must also be present.

On the surface of the water, you can let ricci.

As neighbors fit any peaceful fish. There are conflicts in the group between males of swordtails, so it is necessary that there are more females than males.

In this case, the males must be either one or more than three individuals – aggression is sprayed, and not directed directly at each other between the two males.

Breeding swordsmen

Swordtails belong to the family of viviparous. The female at a time is able to give life from 15 to 100 fry, and even more.

The number of juveniles born into the world depends on the age and size of the mother, as well as on the conditions of her life. For successful breeding, the pregnant female is deposited in a separate aquarium before birth.

So that the fry born to avoid the teeth of an adult female, small-leaved aquatic plants should also be placed there to create life-saving algae thickets in a small pond where it is so good to hide from danger. Breeding will not require any special care from the aquarist.


It will be enough just to isolate the female for the time of childbirth from the rest of the aquarium, and after the childbirth return it to the familiar environment, leaving the sword children to develop on their own. By the time of birth, fry are completely formed for the beginning of independent life.

As soon as they were born, they immediately begin to tirelessly master the space of the aquarium and actively feed. Kids are almost omnivorous, but it is preferable to give them daphnia and cyclops.

With proper feeding, the fry grow rapidly, by 3-4 months they already acquire a “sword”, and puberty occurs in 4-6 months.


Swordtails are not aggressive, peaceful fish. They are compatible with all similar fish: tetras, neons, minors, terntions, danios, all petilium fish: guppies (can bite), mollies, etc. They are compatible with almost all aquarium catfish – corridoratus (speckled catfish), akantoftalmusy, platidorom, antsistrusami, bag-tailed catfish, etc.

Moreover, the Sword-bearers very well get on with peaceful and not large cichlids, for example, with scalars. It is not recommended to push them to the “veil” fish – they are slow and swordtails can “pinch” them for beautiful, large fins. Not compatible with aggressive and large fish, for example, cichlids: Akara, astronotus, diamond tsikhlazomy


Swordtail Aquarium Fish Diseases There are three main reasons:

  • wrong content;
  • bacterial and fungal infections;
  • parasites.

You would think that only in the first case the fault lies with the aquarist’s conscience. But in fact, infections and parasites affect fish with immunocompromised.

In other words, even if there is no fungus or parasite in the aquarium, in bad conditions the fish will get sick.

Attentive owner will notice the beginning of the disease Swordtails with daily inspection of aquarium fish. That’s what it costs note:

  • fading in place, lying on the bottom;
  • random swimming, rocking, rubbing against stones;
  • loss of appetite;
  • bloating;
  • folding fins;
  • dull and whitish spots on the body;
  • cotton-like shreds.

The diseased individual should be transplanted as soon as possible. It may be possible to save the healthy from infection.

Swordtails belong to the family of viviparous, carp-toothed. The body is elongated, flattened laterally.

The natural background color of the males is light brownish-olive, on the back with a green tint. A red two-millimeter strip runs along the sides, and two narrower red stripes below and above it. The long lower ray of the tail fin (sword) has a black clear edging.

The color of the female is much paler, the body with a silvery sheen, the middle of the body is occupied by a wide strip, and below and above this strip pass two more narrow strips 0.5 mm wide.

As a result of breeding, the Sword-bearers have not only various forms of fins, but also different colors of their body colors: black, red, olive, orange, yellow, and their combinations (for example, yellow body and black fins). Sword-bearers with two swords are also drawn at the bottom and the top of the tail.

The body of a male (without a sword) can grow up to 8 cm, and females up to 12 cm.

Swordtails live up to three to five years.



Aquarium fish swordtails: reproduction and maintenance

Swordtails are very popular among professional aquarists, and among fans. But before you get these bright fish, it is better to find out the details of care, breeding, compatibility with other types of fish, etc.

The natural habitat of the swordtails is Central America and South Mexico. Such an interesting name was given to these fish because of the unique shape of the fin. It is only for males and is used by them for reproduction.

Surprisingly, females of the swordtail can change their gender by growing a sword fin, and even in such a state give birth to offspring. In length, they are from 8 to 12 cm, not counting, of course, its fin.

Swordtails live about 4-5 years.

Swordtails do not require any thorough care. This way they are easy to maintain.

They do not need a special composition or a certain amount of water, they withstand a good lowering of the temperature (the optimum water temperature for them is 23-25 ​​° C). Water hardness also does not become a problem for these fish – 8-25.

Acidity is acceptable within 7-8.

To arrange the aquarium, you first need to find out what form it will be. It is better to take a rectangular aquarium without any decorations, which only interfere.

As for the volume, then for two representatives of this species or fish of similar size, an average of 8–10 liters of water is needed, that is, 10–15 individuals per capacity of 50 liters.

Install the aquarium should be closer to the window, because the light is needed and the fish themselves, and plants. But putting it on the windowsill is a bad idea, because the sun or the heat of the battery will overheat the water and it will bloom.

The surface must be flat, otherwise the walls of the aquarium may burst (if this happened, the article “Repair the aquarium at home” will help to correct the situation).

It is better when there are plants in the tank, then you can not be afraid to leave your pets without food in rare cases. Aquarium plants should be selected as thick as possible so that the fry can hide from more adult individuals.

But there should be a space for the free movement of fish. To do this, fit, gloss and glossy cabomba.

At least once a week, it is recommended to replace 20-30% of the aquarium water with clean water, and you can also add sea salt to it.

As the soil for the aquarium, you can take the usual pebbles. Aeration of water is desirable, but not necessary, at a low density of fish population.

As for food, here too the swordtails are universal – any food, live or dry, is suitable for them. It is recommended not to forget about vegetable types of feed, and to use them in addition to algae.

For this fit variety of lettuce, spinach or oatmeal.

Having decided to start these fish, you need to remember the so-called hierarchy, and therefore it is better to place more females in one aquarium. There will be enough males and a few, preferably 3-4, so that between them there is no particular competition.

You should always cover the aquarium with something from above, as the swordtails are very nimble and like to jump out of it.

Aquarium fish swordtails: compatibility with other species

These are, in general, fairly calm fish; they only sort out relationships with each other, so you can keep them in the same container with other species. The only thing that they can aggressively treat smaller fish.

Barbs, cockerels, discus, tetra, labo, guppy, gourami get along well with swordtails.

Not very successful combination with them are eels and shrimps, but cichlids, goldfish and astronotuses are completely incompatible with swordtails.

Before the acquisition is recommended to check the fish for infections. Need to pay close attention to the rash, fluff or sores.

If something like this is present on the body of the fish, then it is sick.

Even with full confidence in the purchase of healthy swordtails, just in case, they should be left for 10-15 minutes in a container with salt water, and then transplanted into an aquarium.

With a clear disease of the fish, for example, the appearance of white fluff, it is placed first in a salted bath, then a weak solution of methylene blue is made and the swordtail is kept in it for 2-3 days. The temperature of this fluid must be at least 24 ° C.

Tripapaflavin and biomitsin help in infections and diseases of the gills.

It is interesting and very exciting to keep and breed the Swordsmen. For example, you can cross fish of different breeds and get unique fry with new coloring or fins.

And even a child can cope with elementary ways of caring for them.

Video on how to keep the Sword in the aquarium:

In order for the offspring to turn out beautiful and healthy, it is necessary to choose males and females for spawning. The age of males should be 8 months, their tail fin should stand out with a long lower ray, and gonopodia should increase in size.

The female should be 8-10 months old, large in size and have a rounded abdomen, which indicates readiness for reproduction.

Fertilization of the fish swordtail intrauterine. If fertilization has occurred, part of the male spermatozoa will remain in the female’s abdomen, which will fertilize the female again, without the participation of the male individual.

Therefore, having gotten the Sword-bearers, you should know that these fish can produce offspring every month. In one spawning, the female sword bearer will give birth to 50-200 fry.

Why exactly this amount? The fact is that young females bring less offspring, mature ones more, and with each birth the number of fry will increase. Also, the number of calves depends on the species, the conditions of the fish.

Pregnancy lasts 4-6 weeks; in the female, the belly will become round, before giving birth it will become almost square in shape. A month before giving birth you need to prepare a spawn.

As a spawning tank suitable capacity of 25-50 liters with infused tap water. It is recommended to plant small-leaved vegetation in the bottom of the tank, in which fry will be hidden. After preparing the spawning grounds, a female is fed into it, which is fed with live food.

After the birth of the young, the female fish is deposited in a common aquarium so that she does not eat her brood. For delicate felling, use a net.

See how the swordtail fry are born.

Swordtails are special viviparous fishes that are capable of changing sex throughout life. This feature is due to the absence of sex chromosomes.

Newborn swordtails do not have obvious sex characteristics, only at the age of 3-6 months they will be noticeable. Some fry breed at the age of 3-4 months, so they should be sorted by gender – females and males should be settled in separate containers.

During the life of the female swordtail can become a male, and vice versa. Such metamorphoses are inherent in those individuals who are trying to preserve the species in the face of the threat of extinction of the pack.

In one aquarium can live 1 male and 2-3 females. With the passage of time, the male may die, and one of the females will begin to turn into a male.

It forms gonopodium, lengthens the lower ray of the caudal fin. When the fish that have changed their sex from female to male reproduce, their descendants will be female.

You can adjust the sex of the fry of the future pets. If you want to breed males or females for sale, the water temperature must be raised or lowered by several degrees.

Avoid early crossing of fry, they are ready for it at an early age. When species are crossed, beautiful offspring can turn out; when breeding breeds are crossed, degeneration will occur.

Swordtails: reproduction and maintenance. Aquarium fish swordtails

Great exit – get an aquarium! Hassle with fish at least, and the whole family will receive the aesthetic pleasure to the maximum! In addition, these bright tropical creatures can be admired endlessly.

Such contemplation of the home underwater world calms, gives composure and a beneficial effect on the psyche.

Plus, the aquarium will bring a juicy touch to the room’s décor, and your child will be looked after by its inhabitants, thus getting used to discipline and responsibility. Moreover, a modern “house” for fish can look like anything! You can easily choose an aquarium so that it harmoniously blends into the overall style of the nursery.

Be sure to take the baby with you to the pet store, let him, as an adult, help you choose a tank of the desired shape and size, will find residents for it. In addition to fish, you can buy unhurried snails, a variety of algae, as well as all sorts of paraphernalia – decorative locks and elegantly curled shells. As for the choice of pets themselves, it is better to start with unpretentious species of fish, such as guppies, mollies, danios, barbs, neons …

For more effeminate scalars, funny shrimps and slow telescopes, if you want, return later. Explain to the child that you first need to learn how to handle simpler fish. Naturally, in any case, it is necessary to consult the seller.

He will ensure that predatory and peaceful fish are not in the same “house”; advise food, soil, jewelry, a net; will tell you which compressors, filters and lighting devices are the most convenient to use.

Surely in the list of proposed inhabitants it will be the swordfish fish.

These undemanding small fishes (most often bright red or black in color) with beautiful sharp tails are ideal as the first pets for your kid. Firstly, they do not need special conditions of detention, secondly, they easily get along with other types of fish, and thirdly, they are viviparous. Reproduction of swordtails in an aquarium, it can be said, happens almost by itself.

And imagine how much joy the child will have when he sees the first fry that will grow before his eyes!

The red swordtail is a small aquarium fish that lives in the waters of Central America. Also, these fish are found in turbulent rivers, lagoons and marshes.

The red swordtail is the result of the crossing of the red petilia and the green swordtail. They are considered the first type of Sword. These fish have no special requirements for the content, like a large space and floating algae.

Fodder prefer live, vegetable. A 70-80 liter aquarium will be a very comfortable habitat for them. Such fish must have fresh and clean water.

The temperature of the content – not less than 26 degrees.

Red swordtails – viviparous fish. In males during puberty, the anal fin is lengthened and sharpened, acquiring the appearance of a sharp sword.

In fact, this sword is a collective body, which has a name – gonopody. The females of the red sword of the sword do not have: on this basis, and distinguish the sex of animals.

To obtain offspring, these fishes lack one fertilization, since the “sacks” with sperm enter the female’s body and are stored there for several months. It is enough to fertilize the female of the red swordtail only once, in order to get offspring for a long time.

There is one more interesting fact: after some time the swordtail females have the ability to turn into a male. Females that have become males do not have the ability to produce offspring. But after its change, the female, turned into a male, can be distinguished from the male.

Such a fish retains a typical body shape, fins are less developed.

The swordtail chooses only the best males to mate. At this point they are from 7 months and they are 6-8 cm long (length without a sword).

Such a male should be slim, active, have an interesting color and the longest sword. Females choose the most productive of the offspring.

Swordtail fish can carry offspring for 4-6 weeks. The female before spawning is deposited in a separate place, as the males of the swordtails exterminate the boys (as you know, the females bring about 200 of them), the size of which is from 8 to 10 millimeters.

In the general aquarium the female is deposited after giving birth, but without the babies. The formation of the floor occurs depending on the temperature of the water. Born fry actively swim and feed, as they are born mature.

Their diet should contain a large amount of protein.

With a good and stable water temperature, females spawn fry monthly. They will not need a male for many months.

A female should be larger than a male.

Approximately once every two months, the fish must be sorted by size, as they grow unevenly. The Sword-bearer is a peace-loving fish, therefore it must be maintained with the same peace-loving fish, in order to avoid trouble.

It is not advisable to sit down swordtails to slow-moving fish, because of their activity, they can tear off fins.

It is necessary to closely monitor the health of the fish. Pets will suffer if elemental conditions of detention are violated, as well as in the event of infection caused by feed.


(with photo)

The variety of aquarium fish sometimes affects. And given the fact that one species of fish has its own varieties – the aquarium world becomes just gigantic.

Sometimes it is even difficult for an experienced aquarist to tell what kind of fish it is. Hopefully, the following selection of TYPES OF SURFACERS will help you to figure out who is swimming in your aquarium.

Xiphophorus helleri

Order, family: petsilievye.

Comfortable water temperature: 20 – 25 ° C.

Ph: 7.0 – 7.5.

Aggressiveness: not aggressive.

Compatibility: non-aggressive – peaceful fish (tetras, neons, somas, minors, etc.). It is not recommended to push them to the “veil” fish – they are slow and swordtails can “pinch” them for beautiful, large fins.

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.

SEE, read HERE: Swordtails: description, content, compatibility and feeding

TYPES OF SURFACERS Bulgarian white swordtails

High Swordsman

Mountain Sword

Green Swordsman

Red-speckled tiger swordtails

Red Swordsman

Lemon Sword

Lyre-tailed Sword

The Swordsman of Hell

Rainbow Swordsmen

Calico Sword

Black Swordsman

Video with swordtails

The natural color of these fish is considered to be green. But today there are a lot of various selection species with the most different shades. There is one significant difference between the sexes: the lower rays of the caudal fin in males are noticeably elongated, thereby acquiring the appearance of a sword.

Depending on the species, the body length of the fish ranges from 5 to 8 cm.

Different colors of swordfish aquarium fish were obtained by crossing. In addition to different colors, representatives of different species have different fin shapes. Here are the main types of swordtails who breed at home in aquariums:

  1. Green Swordsman. Its color is olive brown, fairly light. Along the entire body is a bright strip of red. The body is slightly flattened, rather narrow.
  2. Red Swordsman. This species was obtained by crossing a green swordtail and a red pelicion. The body of the fish has a bright red hue.
  3. White swordtail This is a pronounced albinistic form. The fish has bright red eyes. This species is more stable and strong in terms of constitution than the rest.
  4. Brindle. On the red body of the fish there are black stripes resembling the color of a tiger’s skin. The tail is quite long, black.
  5. Mountain Sword. Color creamy yellow. On the sides are visible small stripes in the form of zigzags, there are small specks.
  6. The black. The species was obtained by crossing a green swordtail and a black pellition. The color may be greenish or blue reflux.

When choosing an aquarium, first note its length. Aquarium fish swordtails need a long aquarium, preferably with vegetation reaching the surface of the water.

In general, the vegetation in the aquarium with the swordtails is a prerequisite for their successful maintenance.

These fish are omnivores, and therefore there will be no problems with feeding. A bloodworm or any dry prepared feed will do.

It is advisable not to give preference to only one type of feed, it is better to diversify the nutrition of the fish.

The fishes are peaceful, so feel free to add all kinds of calm and docile fish. Males are pretty bullies.

In order to avoid problems, try to hook up at the same time no more than three individuals of different species, ideally, the males should belong to the same species.

As a rule, the size of the female swordtail does not exceed 8 cm. It has a rounded tail fin, the xiphoid process is absent.

The color of the female is always much paler than that of the male.

Depending on the conditions of detention, female puberty begins at the age of 6-8 months. To determine the moment when the female is ready to bear the offspring, you can do the following: inspect the anal fin, if you can clearly see the birthing spot, feel free to start breeding fish.

Viviparous fishes, and therefore fertilization occurs naturally. From each fertilization can be expected 2-4 litters. Pregnancy lasts 4 to 6 weeks.

The female is able to sweep up to 200 fry, it depends on the type of fish, size and heredity.

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Iriaterina Werner – Iriatherina werneri Representatives of the fresh waters of Australia and nearby islands ...

Micro spotting spotted (Boraras maculatus) – content, breeding

Micro spotting spotted (Boraras maculatus) It was introduced to Europe more than 100 years ago, ...

Scalar (Pterophyllum scalare) – description, content, breeding

Scalpel (Pterophyllum scalare) Lichtenstein, 1823.Family Cichl – Cichlidae. Habitat: Inhabit the region of South America, ...

Black phantom (Hyphessobrycon megalopterus) – content, breeding

Family: Characteristic (Characidae). Habitats Central Brazil, the basin of the river Rio Guaporé forest forests ...

Guppy (Poecilia reticulata) – description, content, breeding

Guppy (Poecilia reticulata) – viviparous aquarium fish. Order: Cyprinodontiformes (Cyprinodontiformes).Family: Pecilia (Poeciliidae). They inhabit the ...

Barbus eight-strip (Eirmotus octozona) – content, breeding

Eight-bar / 8-bar glass barbus (Eirmotus octozona) SCHULTZ 1959 It was first described by Leonard ...

Iriaterina Werner family of iris – description, content

Iriaterina Werner (Iriatherina werneri) family of iris or melanotinyh – description, necessary parameters of the ...

Neon blue (Paracheirodon innesi) – content, breeding

Neon blue or ordinary (Paracheirodon innesi) Myers, 1936. Refers to the order Cyprinids (Cypriniformes), sub-order ...

Glass catfish (Kryptopterus vitreolus) – content, dilution

Glass catfish (Kryptopterus vitreolus) NG KOTTELAT, 2013. Previously mistakenly identified as (Kryptopterus bicirrhis). Kryptopterus: from ...

Eleotris carpet (Tateurndina ocellicauda) – content, breeding

Eleotris carpet / Peacock goby (Tateurndina ocellicauda) Nichols / Nichols, 1955 Family Golovoshkovye (Eleotridae). Carpet ...

Barbus Denison (Puntius denisonii) – content, breeding

Barbus Denison (Puntius denisonii) was first described in 1865, but became known only in 1997 ...

Kalamoiht Kalabarsky (Erpetoichthys calabaricus) – description, content

Kalamoicht calabaric (Erpetoichthys calabaricus / Calamoichthys calabaricus) Smith, 1865 Erpetoichthys: Greek, erpeton = snake + ...

Neon black (Hyphessobrycon herbertaxelrodi) – content, breeding

Neon Black (Hyphessobrycon herbertaxelrodi) first appeared in European aquariums in 1961, in domestic – in ...

Glass perch (Parambassis ranga) – content, breeding

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

Pelvicachromis pulcher (Pelvicachromis pulcher) – content, breeding

Pelvicahromis pulcher or Parrot (Pelvicachromis pulcher) – the most beautiful and therefore the most popular ...

Barbus Linear (Desmopuntius johorensis) – content, breeding

Barbus Linear / Barbus Five Linear / Barbus Striped (Desmopuntius johorensis / Puntius johorensis) Duncker ...

Cardinal (Tanichthys albonubes) – content, breeding

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