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Tetras | Black Long-Fin Tetra

Tetras | Black Long-Fin Tetra

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(Please note that the fish shown in the photo is only a representative of what an adult specimen would look like. The color may vary based on the age and sex of the fish you receive.)

Scientific Name: Gymnocorymbus ternetzi

Common Name: Longfin Blackskirt Tetra, Long Finned Black Widow, Black Hifin Tetra

Adult Size: 2.2 inches

Life Expectancy: 6 - 7 years

Habitat: South America in Paraguay and Guapore Basins

Minimum Tank Size: 15 gallons

Ideal Tank Conditions: 

  • Temperature Range: 70 - 79°F
  • pH Range: 5.8 - 8.5
  • Water Hardness: 3 - 30

Temperament: Semi-aggressive

Diet & Nutrition: Omnivore; should eat most common aquarium foods. Flakes, frozen, freeze dried and may nibble at some aquarium plants.

Breeding & Spawning: Egg scatterer. The adults may eat the eggs. You will need a bare bottom breeding tank and will have to remove the adults after they release the eggs.

Gender: The male's dorsal fin is narrow and more pointed. A mature female is plumper.