Congo Tetra (Phenacogrammus interruptus)

The Congo Tetra (Phenacogrammus interruptus) is a striking freshwater species admired for its iridescent, rainbow-like coloration and elegant finnage. Native to the Congo River Basin in Central Africa, this peaceful schooling fish is an excellent choice for community aquariums, bringing movement, vibrancy, and beauty to any aquascape.

Congo Tetras display shimmering hues of blue, orange, and violet across their bodies, with flowing fins edged in white or gold. Best kept in groups of six or more, they thrive in well-planted aquariums with open swimming space and gentle water flow.

Care Guidelines & Tips:

• Tank Size: A minimum of 30–40 gallons is recommended to accommodate a small school.

• Water Parameters: Temperature 23–28°C; pH 6.0–7.5; soft to moderately hard water preferred.

• Diet: Omnivorous; accepts high-quality flakes, pellets, and frozen/live foods such as bloodworms, brine shrimp, and daphnia.

• Temperament: Peaceful and suitable for community tanks; avoid housing with overly aggressive or fin-nipping species.

• Aquarium Setup: Provide a balance of planted areas for cover and open swimming zones. Dim lighting and a dark substrate enhance their iridescent colors.

Additional Tips:

• Maintain stable water quality, as Congo Tetras are sensitive to sudden changes in parameters.

• A school of six or more individuals reduces stress and encourages natural shoaling behavior.

• Supplementing their diet with varied frozen and live foods will intensify their coloration.

The Congo Tetra is an ideal species for aquarists seeking a vibrant, peaceful fish that thrives in a community environment while adding a stunning visual centerpiece to the aquarium.