The Sword (Xiphophorus Helleri) – This is a fish that is increasingly found in the collections of aquarists, this type of unpretentious, so taking care of it can even beginners. In natural conditions, individuals live in the waters of Guatemala, southern Mexico and Central America. The name of these fish received due to the characteristic shape of the tail fin, which really looks like a sword.
This fin is present only in males.
Photo 1. Swordsman red
In the aquarium, the fish grow in length to 8 centimeters, they have a narrow long body, flattened on the sides. The main body tone is olive-gray, along which longitudinal reddish stripes pass. The dorsal fin is colored yellow; in males, the anal fin is a gonopodia intended for reproduction.
It is also worth noting that hybrids bred artificially can be painted black and yellow, the color of males is brighter.
For the swordtails it is worth picking up a long aquarium in which the fish will be spacious and comfortable. It is advisable to plant there plants that will reach the surface of the water.
The water temperature is 20-26 degrees, swordtails easily adapt to hard water – 20-30 gH, the acidity should be 7-8 pH. Feeding fish will not cause much trouble – the swordtails are omnivorous, therefore they willingly absorb both live and dry food.
These fish are quite peaceful, but at the same time there is a strict hierarchy in their flock – a stronger male can offend the weak, therefore it is desirable that there be at least 3-4 males in the flock.
Photo 2. Swordsman (male)
If you decide to engage in breeding, remember that for breeding it is desirable to choose a pair of female and male, whose sexual characteristics were formed at the age of 3-4 months. The bellied abdomen indicates the female’s “pregnancy”, the fish carries fry for up to 5 weeks.
They are deposited in a separate aquarium, at a time the female can give birth to 100 fry, which grow very quickly. You can cross between the swordsmen of different colors.
Photo 3. Swordsman green
• Swordtails are interesting because if the aquarium is overpopulated with females, they can even change their sex. A “sword” on the tail fin grows in the fish and gonopodia appear. Males do not turn into females;
• Swordtails – the fish are peaceful and calm, it is undesirable to keep them with fish, which are much smaller than them, because swordtails can show aggression towards them;
• For the first time these marvelous fish were introduced to Europe in 1909;
• The natural color of swordtails is green.
Photo 4. Female Swordsman
Swordtail is among the ten most popular aquarium fish
Buy Swordsman and find out the prices you can on the bulletin board.