Black Skirt Tetra (Gymnocorymbus ternetzi)

The Black Skirt Tetra is a hardy and attractive schooling fish known for its distinctive dark coloration and flowing fins. Native to South America, this active species adds movement and contrast to community aquariums while remaining easy to care for. Their peaceful nature and adaptability have made them a long-time favorite among freshwater hobbyists of all experience levels.

Quick Facts

• Care Level: Easy
• Temperament: Peaceful, Active
• Diet: Omnivore
• Origin: South America
• Adult Size: Up to 2.5 inches (6 cm)
• Minimum Tank Size: 20 gallons
• Temperature: 70–82°F (21–28°C)
• pH: 6.0–7.5

Black Skirt Tetras thrive when kept in groups of six or more, which helps reduce stress and encourages natural schooling behavior. They appreciate aquariums with open swimming areas balanced by plants, driftwood, and other décor that provide shelter and security.

These adaptable fish readily accept high-quality flakes, micro pellets, and frozen foods such as bloodworms, brine shrimp, and daphnia. Offering a varied diet helps maintain their health, activity level, and overall appearance.

With their striking coloration, active schooling behavior, and easy-going temperament, the Black Skirt Tetra is an excellent choice for community aquariums and a dependable addition to both beginner and established freshwater setups.