Swordtail fish

Description

Swordtail Fish – Xiphophorus hellerii | Colorful, Active Freshwater Livebearers

Swordtail fish (Xiphophorus hellerii) are among the most striking and popular freshwater aquarium species, instantly recognized by the male’s elongated lower tail fin, resembling a sword. Native to Central America, swordtails are widely bred for their bright coloration, peaceful temperament, and ease of care, making them excellent for beginner and community aquariums.

Key Characteristics:

• Scientific Name: Xiphophorus hellerii

• Common Name: Swordtail

• Size: 2.5 to 4 inches (males slightly smaller than females)

• Lifespan: 3 to 5 years

• Popular Colors: Red, orange, green, black, gold, pineapple, tuxedo

• Water Temperature: 22°C – 28°C

• pH Range: 7.0 – 8.4

  Aquarium Care:

  • • Hardy and adaptable to a range of water conditions

    • Best kept in community tanks with other peaceful fish like guppies, mollies, and platies

    • Feed on flake food, pellets, algae wafers, and occasional live or frozen food

    • Males may show mild territorial behavior; provide hiding spots or plants

  Breeding:

  • • • • Livebearers – give birth to live young

        • Easy to breed; females can produce fry every 4–6 weeks

        • Provide hiding areas (plants or breeding boxes) to protect fry from being eaten

  Popular Among:

  • • • Hobbyists and beginners

      • Ornamental fish farms

      • Aquascaping setups for their activity and color diversity