Black Widow Tetra - Gymnocorymbus ternetzi 2-3cm

The Black Widow Tetra, also known as the Black Skirt Tetra, is a popular and hardy freshwater fish that adds a touch of elegance to any aquarium. These tetras are known for their distinctive black edges on their fins, which contrast beautifully with their silver bodies. They are a schooling fish and are most comfortable and vibrant when kept in groups of six or more. This behavior not only enhances their natural beauty but also reduces stress and promotes a more active and engaging tank environment.

Black Widow Tetras are relatively easy to care for and can adapt to a wide range of water conditions, making them suitable for both beginners and experienced aquarists. They are highly active and can often be seen swimming in the middle to upper levels of the tank. Their diet is omnivorous, and they will readily accept a variety of commercial fish foods, including flakes and pellets. Supplementing their diet with live or frozen foods like brine shrimp and bloodworms can help bring out their best colors and ensure optimal health.

While generally peaceful, Black Widow Tetras can sometimes exhibit nippy behavior, especially towards slower-moving or long-finned fish. Therefore, it's best to avoid keeping them with species like bettas or angelfish. Instead, they do well with other peaceful community fish such as Larger Tetras, Loaches, and corydoras catfish. A well-planted tank with plenty of open swimming areas and hiding spots is ideal for these tetras. They also benefit from a gentle current, which mimics their natural river habitat.

Breeding Black Widow Tetras can be a rewarding experience. They are egg scatterers and will lay their eggs on fine-leaved plants or spawning mops. The eggs hatch in about 24-36 hours, and the fry are free-swimming a few days later. A separate breeding tank with optimal conditions and minimal predators is recommended to ensure a higher survival rate for the fry.

Overall, the Black Widow Tetra is a beautiful and low-maintenance addition to any freshwater aquarium, bringing both activity and a striking appearance to your aquatic environment. Their hardy nature and adaptability make them a valuable and enjoyable part of any community tank.