Red Eye Red Line Tetra Care Guide

Hemigrammus rubrostriatus · Freshwater Fish

Red Eye Red Line Tetra
AI-generated illustration of Red Eye Red Line Tetra
Temperature
72-82°F
pH
5.5-7.5
Adult size
~2″ (5 cm)
Suggested tank
15+ gal
Group size
6+ together
Origin
South America
Family
Characidae

What Red Eye Red Line Tetra look like

Hemigrammus rubrostriatus, commonly known as the Red Eye Red Line Tetra, exhibits a small, fusiform body that typically reaches a maximum adult size of approximately 2 inches (5 cm). The species is characterized by its striking silver body adorned with a vivid red horizontal stripe that runs laterally along its flanks, complemented by a prominent bright red eye, which serves as a distinguishing feature. The fish possesses a well-developed adipose fin and a forked caudal fin, enhancing its agility in the water column. Sexual dimorphism is subtle, with females generally appearing slightly fuller-bodied than males during the breeding season. Defensive adaptations include a laterally compressed body shape that allows for quick evasive maneuvers, and the presence of a lateral line system that aids in detecting vibrations in the water, enhancing its ability to evade predators.

Behavior & temperament

The Red Eye Red Line Tetra is a social species that thrives in small to medium-sized schools, exhibiting a gregarious nature that fosters a dynamic social hierarchy within the group. These fish predominantly inhabit the mid to upper water column in their natural habitat, often found in slow-moving streams and floodplains of South America. They are egg scatterers, engaging in breeding behavior that involves releasing eggs among aquatic vegetation. Their temperament is generally peaceful, making them suitable for community tanks, though they may display mild territoriality during breeding periods.

Diet & feeding

In the wild, Hemigrammus rubrostriatus is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they thrive on high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure a balanced diet.

Behind the name

Hemigrammus (from Greek 'hemi-', meaning half, and 'grammus', meaning line; referring to the lateral line system) and rubrostriatus (from Latin 'ruber', meaning red, and 'striatus', meaning striped; describing the red stripe along its body).

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Red Eye Red Line Tetra?

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