Xiphophorus helleri
Swordtail
Swordtails are energetic swimmers that come in many color variations. They are very hardy and great for beginners. They are close relatives of Platies and can sometimes interbreed.
Ensure perfect water for Swordtail ➔
Perfect for Aquaware Monitoring
Caution: Highly Sensitive
This species reacts immediately to unstable water parameters. Even minor fluctuations can be critical. Continuous 24/7 monitoring with Aquaware is highly recommended.
Temperature
22 - 28 °C
72 - 82 °F
pH Value
7.0 - 8.3 pH
Acidity Level
Mineral Content (TDS)
150 - 450 ppm
⚠️ Hard water required
Did you know?
Female swordtails have been known to change sex to male under certain environmental conditions.
Aquaware Pro Tip
Always use a tight-fitting lid, as Swordtails are notorious jumpers when they get excited.
Natural Habitat
Fast-flowing rivers and streams in North and Central America (Mexico to Honduras).
Diet & Nutrition
Omnivore. Enjoys flakes, pellets, and plenty of vegetable matter like algae.
Behavior
Peaceful but very active. Males can be competitive and chase each other.
Max Size
10-12 cm (4-5 inches)
Average adult size
Lifespan
3-5 years
Years with proper care
Swim Zone
Preferred tank region
Top 🐟
Mid 🐟
Bottom
Min. Tank
100 Liters
Recommended minimum size
Social
3 Fish
Small group required
Add. Space
20 L
Required per additional fish
(5 Gallons)
(5 Gallons)
💧 +20 Liters needed