Active livebearer; males develop the long sword-shaped tail extension that gives the species its name.

• Scientific name: Xiphophorus hellerii
• Adult size: about 9 cm
• Temperature: 21–27 °C
• Water: pH 7.0–8.2
• Minimum tank size: 80 litres
• Temperament: peaceful community animal
• Diet: omnivore
• Care level: easy

Best kept in a group of 3 or more. Each unit is one animal; add several to your cart to build a school or colony.

Supplied in oxygenated bags. Please acclimatise slowly using the drip or floating-bag method for 30–45 minutes before release.