Glowlight Tetra is a small tropical fish from the Essequibo River in Guyana, South America. Its scientific name is Hemigrammus erythrozonus.
This peaceful fish likes to swim in groups and is bigger than neon tetras.
It’s great for community tanks because it gets along well with similar-sized, non-aggressive species.
Red-line rasbora looks like the glowlight tetra but isn’t closely related since it belongs to a different family.
Glowlight tetras can live for 2 to 4 years if taken care of properly. In their natural environment, these fish feed on insect larvae, worms, small crustaceans, and plants.
Glowlight tetras should be kept in groups of at least five in an aquarium that’s at least 60 cm (24 inches) long for optimum health.
Glowlight Tetra Interesting Facts
- Glowlight tetra originates from the Essequibo River in South America.
- A distinctive orange-red stripe runs along its silver body.
- Prefers pH of 6.0 to 8.0 and water hardness between 5 to 12 dH.
- Can grow up to 1.3 inches (3.3 centimeters) long and live for 2 to 4 years with proper care.
Glowlight Tetra Habitat
Glowlight tetra is found in South America, specifically in the Essequibo River. It lives in freshwater environments near the bottom (benthopelagic).
It prefers a pH range of 6.0 to 8.0 and water hardness between 5 to 12 dH.
The ideal temperature for this tropical fish is between 75°F to 82°F (24°C to 28°C).
| Water Temperature: | 75°F to 82°F (24°C to 28°C) |
| Water pH: | 6.0 to 8.0 pH |
| Water Hardness: | 5 to 12 dH |
Glowlight Tetra Physical Characteristics
Size: 1.3 inches (3.3 centimeters)
Glowlight tetra grows up to 1.3 inches (3.3 centimeters) long.
This fish has a silver body with a bright orange-red stripe running from its nose to the base of its tail. Its other fins are silver or see-through.
Glowlight Tetra Scientific Classification
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Characidae |
| Genus: | Hemigrammus |
| Scientific Name: | Hemigrammus erythrozonus |
| Also Known As: | Glowlight Tetra |
| Conservation Status: | Least Concern |