Golden Tetra Care Guide

Hemigrammus rodwayi · Freshwater Fish

Golden Tetra
AI-generated illustration of Golden Tetra
Temperature
75-82°F
pH
6.0-7.5
Adult size
~2″ (5 cm)
Suggested tank
20+ gal
Group size
6+ together
Origin
Guyana
Family
Characidae

What Golden Tetra look like

Hemigrammus rodwayi, commonly known as the Golden Tetra, exhibits a laterally compressed and fusiform body shape, reaching a maximum adult size of approximately 2 inches (5 cm). The most striking feature of this species is its solid metallic gold coloration, which serves as a form of camouflage in its natural habitat. A distinctive dark spot is present near the base of the caudal fin, providing a visual cue for identification. The species possesses a well-developed lateral line system, which aids in detecting water movements and vibrations. The fins are generally transparent with a slight golden hue, contributing to its overall shimmering appearance. There is minimal sexual dimorphism, though females may appear slightly rounder when gravid, indicating the presence of developing eggs. Defensive adaptations include schooling behavior, which reduces individual predation risk, and the ability to quickly dart into dense vegetation when threatened.

Behavior & temperament

Golden Tetras are known for their social and schooling behavior, typically found in groups of six or more individuals, which helps to mitigate stress and enhance their natural behaviors. They inhabit the mid to upper water column in their native habitats, often dwelling in areas with ample vegetation. Their breeding behavior is characterized as an egg scatterer, where females release eggs among plants, and males fertilize them externally. The temperament of Golden Tetras is generally peaceful, making them suitable for community tanks, although they may exhibit slight territoriality during breeding. They are active swimmers, often displaying playful darting movements within their shoal, and they thrive in environments that mimic their natural, densely vegetated habitats.

Diet & feeding

In the wild, Golden Tetras are omnivorous, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they require a balanced diet consisting of high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure optimal health.

Behind the name

Hemigrammus (half line; referring to the lateral line system); rodwayi (named in honor of the naturalist William Rodway).

Plan your tank

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

Keeping Golden Tetra?

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