🐟 Congo Tetra (Phenacogrammus interruptus)
🐟 Congo Tetra (Phenacogrammus interruptus)
Freshwater Tetra • Schooling Fish • Community Fish • Color Display
📋 The Congo Tetra (Phenacogrammus interruptus) is a shimmering African tetra known for iridescent violet-gold flanks and elongated, flowing fins—especially in adult males. In good light, the body shows a rainbow sheen with silver edging on the tail and dorsal.
A calm schooling species, Congo Tetras thrive in groups of 8+ where color, fin extension, and natural behavior are most pronounced. Provide a planted, softly lit aquarium with open swimming space and dark substrate to amplify their metallic tones.
They’re excellent community fish, pairing well with peaceful cichlids, rainbowfish, Corydoras, and other mid-sized tetras. Stable water quality and a nutrient-rich, varied diet keep colors saturated and fins pristine.
💡 Highlights
✨ Iridescent Color Sheen: Rainbow glow with silver fin edging
⚪ Schooling Display Fish: Best color and confidence in groups of 8+
📏 Graceful Finnage: Elongated dorsal/caudal in mature males
✅ Captive-Bred Availability: Reliable, hardy stock for aquarists
🐟 Community Friendly: Peaceful with similar-sized tankmates
🧾 A Quick Look at the Congo Tetra
📛 Common Name: Congo Tetra
🔬 Scientific Name: Phenacogrammus interruptus
👨👩👧 Family: Alestidae
🌍 Origin: Congo River Basin (DR Congo)
📏 Max Size: 9 cm (≈ 3.5″)
💧 pH Range: 6.0–7.5
🌡️ Temperature Range: 23–27 °C (≈ 73–81 °F)
🧠 Care Level: Moderate
💖 Temperament: Peaceful, schooling
🪸 Reef Safe: Freshwater species only
🏠 Min Tank Size: 120 L (≈ 32 US gallons)
📌 Tank Level: Mid–Top
🧬 Captive Bred: ✅ Yes
🌿 Wild Caught: ❌ No
⏳ Lifespan: 4–6 years
🍽️ Diet: Omnivore
🐣 Reproduction: Egg-scatterer; plants/mops preferred

















