Red Twinbar Swordtail (Xiphophorus hellerii)
The Red Twinbar Swordtail is a colourful captive-bred livebearer admired for its bright red body colour, active swimming behaviour and distinctive twinbar tail pattern. This ornamental form of Xiphophorus hellerii is a hardy and lively community fish, best suited to mature aquariums with open swimming space, plant cover and stable, mineral-rich water. Males develop the classic sword-like extension on the lower tail, making them especially eye-catching in a mixed livebearer display.
Common Name:
Red Twinbar Swordtail, Twinbar Swordtail, Red Swordtail, Red Twinbar Livebearer
Specifications
| Feature | Detail |
|---|---|
| Scientific Name | Xiphophorus hellerii |
| Body Colour | Bright red |
| Tail Pattern | Twinbar |
| Sex | Males develop sword-like tail extension |
| Water Conditions | Stable, mineral-rich water; pH 6.5–7.5, temperature 22–28°C |
| Compatibility | Community fish; best in mature tanks with plant cover |
FAQ
What is the ideal tank size for Red Twinbar Swordtails?
A mature aquarium with open swimming space and plant cover is recommended. A minimum of 20 gallons is suggested for a small group.
Do Red Twinbar Swordtails require special feeding?
They thrive on a varied diet of live, frozen, or flake foods. High-protein foods are beneficial for their active swimming and colour development.
How long does it take for male swordtails to develop their tail extension?
Tail development typically occurs within 3 to 6 months, depending on water conditions and diet.
Wanda Hardacre –
The Red Twinbar Swordtails are vibrant and active. They swim freely in the tank and the red colour stands out well. I keep them with other livebearers and they coexist peacefully. The tail pattern is very distinct and adds a lot of visual interest to the aquarium.
Austin Brown –
Great fish for a community tank. They are hardy and stay healthy with regular feeding. The twinbar tail is striking, especially when the light hits it. I’ve had them for six months and they’re still lively and active.
Ryan Hardacre –
These fish are a joy to watch. The red body and twinbar tail make them a focal point. They don’t stress other fish and adapt well to a planted tank with moderate water flow.