The Black Widow Tetra (Gymnocorymbus ternetzi) is a popular freshwater fish known for its striking appearance and peaceful nature. Here are some key characteristics:
Key Features:
- Size: Black Widow Tetras typically grow to about 2 to 3 inches (5 to 7.5 cm) in length.
- Coloration: They have a distinctive black body with a prominent white or silver stripe that runs along the length of their body, giving them a striking contrast. They also have a darkened dorsal fin and can exhibit a slightly iridescent sheen.
- Behavior: These fish are known for their peaceful demeanor and are best kept in schools of six or more, as they thrive in groups. They are active swimmers and enjoy exploring their environment.
Care Requirements:
- Aquarium Setup: Black Widow Tetras prefer well-planted aquariums with open swimming space and subdued lighting. A tank size of at least 10 gallons is recommended.
- Water Conditions: They thrive in soft, slightly acidic to neutral water (pH 6.0 to 7.0) and prefer temperatures between 72°F to 82°F (22°C to 28°C).
- Diet: They are omnivorous and should be fed a varied diet, including high-quality flakes, pellets, and occasional live or frozen foods.
Overall, Black Widow Tetras are attractive and lively additions to community aquariums, appreciated for their striking appearance and peaceful behavior.