BLACK SKIRT TETRAS / Black Widow Tetra

The Black Skirt Tetra (Gymnocorymbus ternetzi), also known as the Black Widow Tetra, is a popular freshwater fish renowned for its striking black coloration and peaceful demeanor. Originating from South America, this species is a favorite among aquarists for its active schooling behavior and compatibility with a wide range of tank mates. Their hardy nature and social behavior make them an excellent choice for both beginner and experienced fish keepers.

Features

• Scientific Name: Gymnocorymbus ternetzi

• Common Names: Black Skirt Tetra, Black Widow Tetra, Petticoat Tetra

• Origin: South America (Paraguay, Brazil, Argentina)

• Size: Up to 6 cm (2.5 inches)

• Lifespan: 3–5 years

• Temperament: Peaceful and social; best kept in groups of 6 or more

• Diet: Omnivorous – accepts flakes, pellets, live, and frozen foods

• Water Parameters:

  • Temperature: 22–26°C (72–79°F)

  • pH Level: 6.0–7.5

  • Hardness: 5–19 dGH

• Minimum Tank Size: 75 liters (20 gallons).

Why Choose Black Skirt Tetras?

• Beginner-Friendly: Hardy and adaptable, making them suitable for novice aquarists.

• Peaceful Nature: Ideal for community tanks with other non-aggressive species.

• Active Schooling Behavior: Exhibit lively group interactions when kept in schools.

• Unique Appearance: Distinctive black coloration adds visual interest to aquariums.

• Low Maintenance: Hardy and adaptable, making them ideal for beginners.

Tank Requirements

• Substrate: Fine gravel or sand to mimic natural habitats.

• Decor: Incorporate live plants, driftwood, and rocks to provide hiding spots and reduce stress.

• Filtration: Efficient filtration system to maintain water quality; ensure gentle water flow.

• Lighting: Moderate lighting to enhance their coloration and support plant growth.

• Tank Cover: Secure lid recommended, as they may jump if startled.

Compatible Tank Mates

Black Skirt Tetras are generally peaceful and thrive in community setups with similarly non-aggressive species. Suitable companions include:

• Neon Tetras

• Harlequin Rasboras

• Corydoras Catfish

• Cherry Shrimp

• Zebra Danios

Note: Avoid housing them with aggressive or fin-nipping species to prevent stress and potential injury.

Recommended Plants

• Java Fern

• Anubias

• Amazon Sword

• Cryptocoryne

• Hornwort

• Water Wisteria

These plants provide shelter and contribute to a healthy tank environment, complementing the Black Skirt Tetra's natural behavior.

Feeding Recommendations

• Staple Diet: High-quality flake or pellet food formulated for small tropical fish.

• Supplementary Foods: Live or frozen foods like brine shrimp, daphnia, and bloodworms.

• Feeding Frequency: Once or twice daily; offer only as much as they can consume in 2–3 minutes to prevent overfeeding.

FAQs

Q: Are Black Skirt Tetras suitable for beginners?
A: Yes, their hardy nature and peaceful temperament make them ideal for novice aquarists.

Q: Can they be kept in planted tanks?
A: Absolutely; they thrive in aquariums with live plants, which provide hiding spots and enhance their natural behavior.

Q: Do they require a heater?
A: Yes, they prefer stable temperatures between 22–26°C (72–79°F), so a heater is recommended.

Q: How many should be kept together?
A: They are social fish and should be kept in groups of at least six to promote natural behavior and reduce stress.

Q: Are Black Skirt Tetras available in Melbourne?
A: Yes, they are in-stock and available for in-store purchase in Melbourne.

Why Choose Fish Hut Aqua?

At Fish Hut Aqua, we provide premium-quality fish like the Black Skirt Tetra / Black Widow Tetra, along with expert advice to help you maintain a thriving and balanced aquarium. 

Add the Black Skirt Tetra to your aquarium today and enjoy the beauty and energy they bring to your aquatic world!