Blood Red Red-eye Swordtail
Red red-eye swordtails do not have the long veil fins of the lyre sword, but they share the remarkable bright solid red body and deep red eyes. Like most swords, these swords prefer water with a touch of aquarium salt in the system. In a planted tank or any tank with some contrasting dark background, the bright red bodies and bright red eyes stand out.
Quick Facts
| Scientific Name | Xiphophorus hellerii (blood red, red-eye) |
|---|---|
| Origin | Southern Mexico to Honduras (wild ancestors); aquarium-bred |
| Care Level | Easy, good for beginners |
| Temperament | Peaceful (males may spar) |
| Adult Size | Up to 4 inches (10 cm) |
FAQ
What makes the blood red red-eye swordtail stand out in a tank?
Their bright solid red body and deep red eyes create a striking visual contrast, especially in tanks with dark backgrounds or planted environments.
Do these fish require special water conditions?
Yes, they prefer water with a small amount of aquarium salt added to enhance their health and coloration.
Are they suitable for beginners?
Yes, they are considered easy to care for and are a good choice for novice aquarium keepers.
Karen White –
The red-eye swordtails are vibrant and active. I placed them in a planted tank with dark rocks, and their bright red bodies really pop. They’re peaceful and don’t bother other fish. Easy to maintain with regular water changes.
Justin MacLeod –
I was impressed by how fast they adapted to my tank. The red eyes and body color are very noticeable. I added a bit of aquarium salt as recommended and they seem healthier than other swordtails I’ve had.
Luke Forsyth –
Great fish for a small community tank. They stay active without being aggressive. The contrast against dark plants makes the tank look more dynamic. I’d recommend them to anyone starting with live fish.