
Brass swordtail
Xiphophorus kallmani
Brassy metallic flanks and a black-edged long sword.
This slender male has olive-gold metallic flanks, a fine orange line and long dark-edged sword.
- Adult length
- Up to 10.5 cm
- Water temperature
- 20–25.6 °C
- Natural habitat
- Native to the Papaloapan drainage region of Mexico.
Keep at 68–78°F, approximately 20–25.6°C.
Appearance and identification
Compared with the compact speckled evelynae male, this has brassy flanks and a long sword.
Same-species behaviour
Keep larger groups.
Diet and feeding
Accepts spirulina and krill flakes, small pellets and occasional frozen Daphnia or Artemia.
Compatibility limits
Consider space and fry risk.
Aquarium environment
Fry may be eaten in a partly planted tank; use a separate brood tank to save fry.
Sources
www.aquariumglaser.de ↗ 2026-10-23
www.fishbase.se ↗ 2026-10-25
www.chicagolivebearer.com ↗ 2026-10-23
