Black Swordtail Fish – LARGE
Black Swordtail fish, scientifically known as a color variation of the common Swordtail, known for their striking black coloration and the prominent “sword” extension on the male’s tail.
They are peaceful, adaptable, and active additions to community aquariums.
Product Specifications
| Feature | Species: Black Swordtail (Xiphophorus hellerii) |
|---|---|
| Size | LARGE (adult length: 3.5 to 4.5 inches) |
| Gender | Male (distinctive sword tail) |
| Bio-Compatibility | Peaceful; suitable for community tanks |
FAQ
What is the difference between Black Swordtail and regular Swordtail?
Black Swordtail is a color variation of the common Swordtail, characterized by its solid black body and prominent tail fin extension, known as the ‘sword’. The tail structure and coloration are more intense compared to standard Swordtails.
How big do Black Swordtail fish grow?
Adult Black Swordtail fish typically grow to 3.5 to 4.5 inches in length.
Are Black Swordtail fish suitable for community tanks?
Yes, Black Swordtail fish are peaceful and adaptable, making them good choices for community aquariums with compatible species.

David Forsyth –
The Black Swordtail arrived healthy and active. It has a beautiful black color and a strong tail that stands out in the tank. It’s easy to care for and gets along well with my other fish. Very satisfied with the purchase.
Tim White –
The fish looks great and is very active. I noticed it swims in a calm, graceful way. It’s not aggressive and fits well in my 10-gallon tank. A good addition to any community setup.
Jane Baker –
I’ve had this Black Swordtail for two months now. It’s vibrant, stays active, and doesn’t bother other fish. The tail is well-developed and looks stunning under the tank light.