GloFish Starfire Red Tetra Care Guide

Gymnocorymbus ternetzi

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Bioload Score

1600

PeacefulEasy
Max Size
5.5 cm / 2.2"
Temperature
21–28°C (70–82°F)
pH Range
6 – 7.5
Min Tank Size
75L (20 gal)
Min Group Size
6 fish
Tank Level
Bottom-Mid
Origin
South America
Temperament
Peaceful
Difficulty
Easy
Breeding Difficulty
Moderate

Diet

An omnivore that accepts quality flakes and pellets alongside small frozen or live foods such as bloodworms, daphnia and brine shrimp.

Community Compatibility

Suitable tankmates include peaceful tetras, rasboras, corydoras, small peaceful barbs, honey gouramis and other similarly sized community fish.

Good to Know

The GloFish Starfire Red Tetra is a fluorescent color variety of Gymnocorymbus ternetzi, the species commonly known as the Black Skirt Tetra.

Gender Differences

Females are generally fuller-bodied, especially when mature, while males tend to be slimmer and may have a more pointed dorsal fin.

About the GloFish Starfire Red Tetra

The GloFish Starfire Red Tetra is a vivid fluorescent variety of Gymnocorymbus ternetzi, displaying a striking red-orange glow that is especially noticeable under blue or actinic-style illumination. Its deep-bodied shape, long flowing anal fin and energetic movements reflect the classic Black Skirt Tetra form, while its intense coloration gives it a distinctly modern aquarium appearance.Like the standard form, this tetra is an active, social fish that spends much of its time in the middle levels of the aquarium. It is most expressive in a group, where individuals weave through one another, occasionally spar and establish a loose social order without usually becoming seriously aggressive.Gymnocorymbus ternetzi originates in the freshwater systems of central South America, particularly slow-moving streams, tributaries and flooded forest habitats. These environments are often shaded by dense vegetation, with soft, stained water and abundant cover created by submerged roots and plants.The Starfire Red strain is part of the GloFish line, whose fluorescent colors were developed through the introduction of naturally occurring fluorescent protein genes. It remains the same species biologically as the familiar Black Skirt Tetra, although its commercial coloration is far brighter than the wild-type silver, charcoal and black pattern.With its bold color, lively schooling behaviour and recognizable tetra profile, the GloFish Starfire Red Tetra has become a popular choice for aquarists seeking a bright, contemporary community-fish display.

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