Fin's Fish Guide
The Swordtail platyfish (Xiphophorus xiphidium) is a freshwater fish of the family Poeciliidae that grows up to 4 cm.
Description
The swordtail platyfish is a small livebearing fish from fresh water of northeastern Mexico, in the Rio Soto la Marina basin. The species grows to about 4 cm and has a silvery to olive body; males have a short, sword-like lower tail lobe and an anal fin modified into a mating organ. It lives in clear streams and pools and feeds on algae, small invertebrates and mosquito larvae. The female gives birth to live young. The fish appears in the aquarium hobby. The IUCN assesses the species as Least Concern (LC).
Frequently asked questions
How do you recognise the Swordtail platyfish?
The Swordtail platyfish has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Short sword-like lower caudal lobe (male); ovoviviparous
Where does the Swordtail platyfish live?
The Swordtail platyfish lives in fresh water and is mostly found around open water. Northeastern Mexico
How big does the Swordtail platyfish get?
The Swordtail platyfish grows to a maximum of about 4 cm. On average the species is around 3 cm.
Is the Swordtail platyfish dangerous to humans?
No, the Swordtail platyfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Swordtail platyfish edible?
The Swordtail platyfish is not usually eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Xiphophorus
More from the family Poeciliidae
Want the complete picture on the Swordtail platyfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Swordtail platyfish is one of 12,519 species in the app.