Long Fin White Skirt Tetra Care Guide

Gymnocorymbus ternetzi

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Bioload Score

1600

PeacefulEasy
Max Size
5.5 cm / 2.2"
Temperature
20–26°C (68–79°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 eats small flakes, micro-pellets, frozen foods and tiny live foods such as daphnia and brine shrimp.

Community Compatibility

Suitable tankmates include peaceful tetras, rasboras, corydoras, peaceful dwarf cichlids and small livebearers of similar size.

Good to Know

The Long Fin White Skirt Tetra is a selectively bred leucistic, long-finned form of Gymnocorymbus ternetzi, whose wild ancestor is commonly called the Black Skirt Tetra.

Gender Differences

Females are usually deeper-bodied and fuller than the slimmer males, which may have somewhat more extended fins.

About the Long Fin White Skirt Tetra

The Long Fin White Skirt Tetra is a pale, silvery-white ornamental form of Gymnocorymbus ternetzi, developed from the familiar Black Skirt Tetra. Its body is laterally compressed and rounded, while the selectively elongated fins give it a flowing appearance. The eyes are typically dark, creating a striking contrast with its light body.This tetra is an active but generally peaceful midwater fish that looks most impressive when moving with companions. Like its wild-type relative, it is a social species that establishes a loose group rather than forming a rigidly coordinated school, and it may occasionally display harmless fin posturing within the group.Gymnocorymbus ternetzi originates in the tropical and subtropical waters of South America, particularly within the Paraguay, Guaporé and upper Paraná river systems. In nature it is associated with slow-moving streams, flooded margins and quiet backwaters where vegetation, submerged branches and shaded water provide cover.The species has long been popular in the aquarium trade because of its distinctive body shape, adaptable nature and lively behaviour. The White Skirt coloration is a cultivated leucistic variety rather than a separate wild species, and the long-fin form further exaggerates the flowing silhouette of this well-known tetra.

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