Black Skirt Tetra
The scientific name is the same as the fluorescent GloFish tetras. Natural skirts come in two variations: the one featured here, the black skirt tetra, a pretty little fish with wide black bands that in a very imaginative way could resemble a skirt. The second variation is the white skirt tetra, which is rather drab but is the parent fish of the genetically modified GloFish tetra. One white skirt tetra plus one gene of a jellyfish equals one GloFish tetra. (Zebra danios are the parent fish for GloFish danios.)
Quick Facts
| Scientific Name | Gymnocorymbus ternetzi |
|---|---|
| Origin | Paraguay and Guaporé basins (Brazil, Bolivia, Paraguay); farm-raised |
| Care Level | Easy |
| Size | 1.5 inches (3.8 cm) |
| Temperature | 72-78°F (22-26°C) |
| Water pH | 6.0-7.5 |
| Compatibility | Good with peaceful community fish |
FAQ
What is the difference between the black skirt tetra and the white skirt tetra?
The black skirt tetra has wide black bands that resemble a skirt, while the white skirt tetra is drab in color and serves as the parent species for the genetically modified GloFish tetra.
Can black skirt tetras live with other fish in a community tank?
Yes, they are compatible with peaceful community fish and thrive in a well-maintained aquarium with similar water conditions.
Where do black skirt tetras originate from?
They originate from the Paraguay and Guaporé basins in Brazil, Bolivia, and Paraguay, and are typically farm-raised.

Natalie Ferguson –
The black skirt tetras are beautiful and active in the tank. They have a striking appearance with their wide black bands. Easy to care for and get along well with other peaceful fish. Water parameters stayed stable after a few weeks of setup.
Jan North –
I’ve had these fish for about a month now. They look great and swim gracefully. The tank feels more lively since adding them. I recommend them for beginner aquarists looking for colorful, low-maintenance fish.
Ian Lyman –
The fish arrived quickly and were healthy. They have a natural, elegant look that adds visual interest to the tank. I noticed they don’t stress easily and adapt well to the tank environment.