Glowlight Tetra
The glowlight tetra, or glolite tetra, has a bright, primarily gold stripe along the body, which flashes reflective light as it swims throughout the fish tank. These fish tend to swim separately, then bunch when threatened, so it makes for lively action. Glowlight tetras have been in the aquarium trade for decades and are truly classics. Males and females look the same.
Quick Facts
| Scientific Name | Hemigrammus erythrozonus |
|---|---|
| Origin | Essequibo River, Guyana |
| Care Level | Easy |
| Temperament | Peaceful |
| Adult Size | Up to 1½” |
| Lifespan | Not specified |
FAQ
What is the origin of the glowlight tetra?
The glowlight tetra originates from the Essequibo River in Guyana.
Are male and female glowlight tetras distinguishable?
No, male and female glowlight tetras look the same.
How do glowlight tetras behave in a tank?
They typically swim separately but will gather in groups when threatened, creating lively movement in the tank.

Jessica Newman –
The glowlight tetras are a stunning addition to my aquarium. Their flashing gold stripe is very eye-catching and adds a dynamic element to the tank. They are easy to care for and stay peaceful with other fish. I’ve had them for three months and they’re still active and healthy.
Wendy Avery –
These fish are beautiful and active. They swim gracefully and their light reflection is impressive. I like that they don’t stress other fish. Only downside is they don’t stay in one spot, which can be a bit distracting if you prefer calm water.
Angela Nash –
I bought these for my beginner tank, and they’ve been thriving. The fish are peaceful and their movement is mesmerizing. I didn’t expect such a vibrant effect from a small fish, and it’s definitely worth the addition.