Congo Tetra

Discover the Beauty and Care of Congo Tetra Fish – Your Complete Guide

Introduction : Welcome to our comprehensive guide on Congo Tetra fish (Phenacogrammus interruptus). These dazzling freshwater fish have earned a reputation for their striking colors and peaceful nature. In this guide, we’ll delve into everything you need to know about Congo Tetras, from their stunning appearance to their care requirements.

Why Choose Congo Tetra?

Aquarists, both beginners and experienced, favor Congo Tetras for several compelling reasons:

  • Vibrant Colors: Firstly, these fish boast iridescent colors, showcasing shades of blue, red, and yellow. These stunning hues create a visually appealing display in your aquarium.

  • Peaceful Temperament: Secondly, Congo Tetras possess a peaceful nature, making them excellent tank mates for various non-aggressive fish species.

  • Ease of Care: Thirdly, while these fish may appear exotic, they are surprisingly easy to care for. This makes them an ideal choice for beginners looking to add vibrant life to their aquarium.

Physical Characteristics:

Congo Tetras exhibit distinct physical features, further contributing to their unique allure:

  • Size: To begin with, these fish typically reach sizes between 2.5 to 3 inches (6-7.5 cm), making them suitable for a range of tank sizes.

  • Coloration: Their striking body colors include iridescent blues and yellows, with vibrant red fins and tails that truly stand out in an aquarium setting.

Tank Setup and Care:

To ensure the well-being of your Congo Tetras, consider the following tank setup and care guidelines:

  • Tank Size: First and foremost, maintain a minimum tank size of 20 gallons to provide ample swimming space for a school of Congo Tetras.

  • Water Parameters: Additionally, maintain a temperature range of 75-80°F (24-27°C) and a slightly acidic to neutral pH level between 6.0-7.5.

  • Aquascape: Create a natural habitat with live plants, driftwood, and subdued lighting. This, in turn, mimics their native environment, offering security and comfort to your Tetras.

  • Diet: Congo Tetras are omnivorous and enjoy a diet of high-quality flakes, pellets, live, or frozen foods like brine shrimp and daphnia. Ensure a varied diet to keep them healthy and vibrant.

Behavior and Tankmates:

Congo Tetras are known for their schooling behavior. Keeping them in groups of at least six individuals reduces stress and allows them to exhibit their natural behaviors. Consequently, they coexist harmoniously with other peaceful fish, such as Corydoras, Rasboras, and smaller tetra species.

Breeding Congo Tetras:

Breeding Congo Tetras can be an exciting endeavor. To encourage breeding:

  • Separate Breeding Tank: Firstly, set up a dedicated breeding tank with fine-leaved plants, where the Tetras will lay their eggs.

  • Water Conditions: Secondly, maintain optimal water quality and conditions and provide a stable environment.

  • Feeding: Lastly, provide a nutritious diet to condition breeding pairs.


Congo Tetras are an exquisite addition to any aquarium, bringing vibrant colors and a sense of serenity to your underwater world. By following the care guidelines outlined in this guide, you can create a thriving environment for these beautiful fish. Whether you’re a seasoned aquarist or a beginner, Congo Tetras offer an enchanting aquatic experience that will captivate all who observe them.

Enjoy the mesmerizing beauty of Congo Tetra fish in your own aquarium today!