Glowlight tetra

Hemigrammus erythrozonus

Wild range: Essequibo River, Guyana (South America)

At a glance: Glowlight tetra care

Compiled reference information. Review the care notes and original sources below.

What temperature is listed for Glowlight tetra?

The compiled profile lists 22.0–28.0 °C for Glowlight tetra (Hemigrammus erythrozonus). Check the original sources below for context and differing recommendations.

What tank size is listed for Glowlight tetra?

The profile lists a minimum tank volume of 10.0 US gallons (37.9 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.

What pH is listed for Glowlight tetra?

The compiled profile lists a pH of 5.5–8.0. Review the cited care sources alongside the other water parameters in this profile.

Natural habitat

Glowlight Tetras are native to the Essequibo River region in Guyana, where they inhabit freshwater rivers characterized by rapids and waterfalls. They thrive in environments with a variety of plant life and a gentle water flow.

Where they are found

The species is commonly found in various water bodies across Guyana, characterized by slow-moving waters and abundant aquatic plants, which offer hiding spots and encourage schooling behavior.

Aquarium care

When setting up a tank for glowlight tetras, it is crucial to replicate their natural environment. The aquarium should include plenty of live plants and ornaments that mimic their habitat. The ideal setup includes an open swimming space, allowing the fish to exhibit their schooling behavior, while ensuring that there's sufficient coverage to make them feel secure. Maintenance of water quality is essential, with regular changes and monitoring of pH and temperature.

Feeding

Glowlight Tetras are easily fed and accept a variety of food types, including high-quality flakes, live foods such as bloodworms and daphnia, and frozen options.

Compatibility

Glowlight tetras are peaceful and thus compatible with a variety of community fish, given that the tankmates are similarly sized and non-aggressive. Ideal companions include small tetras, rasboras, danios, and corydoras catfish, making them good candidates for a community aquarium.

Breeding

Breeding Glowlight Tetras in captivity can be achieved by providing a separate breeding tank with soft, acidic water and subdued lighting. Live foods often entice the spawning process, which typically involves the female laying eggs among plants.

Sources

Compiled from multiple independent care sheets — not copied from a single site.