Red Phantom Tetra
The red Phantom Tetra is a colorful addition to any freshwater community aquarium. The striking color pattern of the semi-transparent red body is accented with darker red markings in the fins. The schooling nature of the Red Phantom Tetra creates an impressive display when kept in a school of at least six or more individuals.
The Red Phantom Tetra is a member of the Characidae Family that is often confused with the similar Serpae Tetra. In the wild, these eye-catching tetras are found in the tributaries and rivers of Colombia, South America.
The ideal aquarium setup for the Red Phantom Tetra should include a variety of live plants, rocks and driftwood to recreate natural habitat and provide hiding spaces. Similar to other tetra species, the male Red Phantom Tetra will have more vibrant coloration than the female.
| Specifications |
|---|
| Species: Red Phantom Tetra |
| Size: 2.5 inches (6 cm) |
| Temperature: 72–82°F (22–28°C) |
| Water pH: 6.0–7.0 |
| Hardness: 2–10 dGH |
| Group Size: 6 or more |
| Compatibility: Peaceful with other community fish |
FAQ
What is the ideal group size for Red Phantom Tetras?
The Red Phantom Tetra should be kept in a school of at least six individuals to display their full coloration and natural behavior.
How does the Red Phantom Tetra differ from the Serpae Tetra?
The Red Phantom Tetra has a semi-transparent red body with darker red markings on the fins, while the Serpae Tetra has a more solid, darker body with distinct black and silver patterns. The two species are similar in appearance but can be distinguished by body transparency and fin markings.
What kind of habitat do Red Phantom Tetras prefer?
They prefer a well-planted aquarium with rocks, driftwood, and hiding spots to mimic their natural habitat in South American rivers and tributaries.

Dylan Ross –
I added six Red Phantom Tetras to my 20-gallon tank with live plants and driftwood. They are very active and create a vibrant, dynamic display. The coloration is especially striking in the evening light. They get along well with my other community fish and don’t stress the tank environment.
Katherine Piper –
The fish arrived healthy and seem to be adjusting well. I kept them in a group of seven and noticed they swim in tight schools. The red markings on their fins stand out in the tank. I’m happy with the color and behavior, though they do need a well-maintained environment.
Joshua Morrison –
After a month, the Red Phantom Tetras have become a focal point in my aquarium. Their schooling behavior is impressive and adds a lot of visual interest. I’ve included plenty of hiding spots and they seem to be comfortable. The water parameters are stable and they appear active and healthy.