Black Skirt Tetra

Black Skirt Tetra
Latin name:
(Gymnocorymbus sp.)

Care Level





Black, White



Preferred Conditions

72-82° F, KH 4-8, pH 6.0-7.5

Avg. Max Size


Minimum Tank Size

10 gallons


Highest Rated Food
Highest Rated Coloring Enhancing Fish Food
Fluval Bug Bites Color Enhancing Fish Food
Insect Larvae & Salmon Recipe Fish Food
The Fluval Bug Bites Color Enhancing Fish Food for Tropical Fish is a highly rated product. The granules are designed to enhance the color of tropical fish, and many customers have noticed a significant improvement in the vibrancy of their fish’s colors. The food is made with high-quality ingredients and is easily digestible for the fish. Superior in terms of color enhancement. #1 Recommended Fish Food

Black Skirt Tetra: A Guide to Caring for This Popular Tetra Species

Are you captivated by the allure of Black Skirt Tetras? These striking fish, scientifically known as Gymnocorymbus ternetzi, have captured the hearts of aquarium enthusiasts worldwide with their elegant appearance and lively behavior. In this comprehensive guide, we’ll delve into the captivating world of Black Skirt Tetras, exploring their unique characteristics, ideal habitat, and essential care requirements.

Characteristics and Behavior

Black Skirt Tetras are renowned for their distinctive appearance. Their bodies are adorned with a vibrant black stripe that extends from the dorsal fin to the tail, creating a striking contrast against their silvery scales. These active and schooling fish are a joy to observe, as they gracefully swim in harmonious unison, adding vibrancy and energy to any aquarium.

Habitat and Water Conditions

To thrive, Black Skirt Tetras require a well-maintained aquarium that mimics their natural habitat. Here are some key considerations for creating an optimal environment:

  • Water Parameters: Black Skirt Tetras prefer slightly acidic to neutral water with a pH range of 6.0 to 7.5. The ideal water temperature should be between 72°F and 82°F (22°C to 28°C).
  • Tank Size: A minimum tank size of 20 gallons is recommended for a small group of Black Skirt Tetras. However, a larger tank is always better, as it provides more swimming space and reduces the risk of overcrowding.
  • Substrate: Choose a fine-grained substrate, such as sand or small gravel, to provide a comfortable and natural bottom for the fish to rest and forage.
  • Plants and Decorations: Black Skirt Tetras appreciate a well-planted aquarium with plenty of live plants. Live plants not only provide hiding places and reduce stress but also help maintain water quality.

Diet and Feeding

Black Skirt Tetras are omnivorous and have a varied diet. They readily accept a variety of foods, including:

  • Live Foods: Live foods, such as brine shrimp, daphnia, and bloodworms, are a favorite treat for Black Skirt Tetras. These foods provide essential nutrients and promote natural foraging behavior.
  • Frozen Foods: Frozen foods, such as frozen brine shrimp and bloodworms, are a convenient alternative to live foods. They offer similar nutritional benefits and are readily accepted by the fish.
  • Commercial Foods: High-quality commercial foods, such as flake food or pellets, can also be part of a balanced diet for Black Skirt Tetras. Choose foods specifically formulated for tetras to ensure they receive the necessary nutrients.


Breeding Black Skirt Tetras in captivity is possible with careful planning and attention to detail. Here are some steps to follow:

  1. Select a Breeding Pair: Choose a healthy and sexually mature pair of Black Skirt Tetras. The female should have a plump belly, indicating that she is ready to spawn.
  2. Prepare the Breeding Tank: Set up a separate breeding tank with soft, slightly acidic water and a temperature of around 80°F (27°C). Add plenty of live plants and hiding places to provide security for the eggs and fry.
  3. Introduce the Breeding Pair: Gently introduce the breeding pair into the breeding tank. Keep a close eye on them to ensure they are compatible and not showing signs of aggression.
  4. Monitor the Spawning Process: The breeding pair will typically spawn in the morning. The female will release her eggs, and the male will fertilize them. The eggs will sink to the bottom of the tank or attach to plants.
  5. Remove the Parents: Once the spawning process is complete, remove the parents from the breeding tank to prevent them from eating the eggs or fry.
  6. Care for the Eggs and Fry: The eggs will hatch in a few days, and the fry will become free-swimming after a few weeks. Feed the fry with live or finely crushed commercial foods.

Common Diseases and Health Issues

Black Skirt Tetras are generally hardy fish, but they can be susceptible to certain diseases and health issues, including:

  • Ich: Ich is a common parasitic infection that can cause white spots on the fish’s body. It can be treated with medication or by raising the water temperature.
  • Fin Rot: Fin rot is a bacterial infection that can cause the fins to become ragged and deteriorate. It can be treated with antibiotics or by improving water quality.
  • Swim Bladder Disease: Swim bladder disease is a condition that affects the fish’s ability to maintain its balance. It can be caused by various factors, including poor water quality, constipation, or injury. Treatment options vary depending on the underlying cause.


Black Skirt Tetras are captivating fish that add beauty and vitality to any aquarium. With proper care and attention to their needs, these fish can thrive and bring years of enjoyment to aquarium enthusiasts. Whether you’re a seasoned aquarist or just starting out, Black Skirt Tetras are a fantastic choice for those seeking a vibrant and active addition to their underwater world.


  1. Q: How many Black Skirt Tetras should I keep in my aquarium?
  2. A: Black Skirt Tetras are schooling fish and should be kept in groups of at least 6-8 individuals. A larger group will provide a more natural and stimulating environment for the fish.
  3. Q: What is the lifespan of a Black Skirt Tetra?
  4. A: With proper care and maintenance, Black Skirt Tetras can live for up to 5 years in captivity.
  5. Q: Can Black Skirt Tetras be kept with other fish?
  6. A: Yes, Black Skirt Tetras are generally peaceful fish and can be kept with other peaceful community fish, such as tetras, rasboras, and Corydoras catfish.