Long fins: avoid known fin nippers such as tiger barbs and serpae tetras.
Good tank mates for Congo tetra
These species share its temperature range and temperament, with no fin-nipping or predation risk under our rules. Still check your tank size and bioload in the checker.
African butterflyfish · African dwarf frog · Angelfish · Banjo catfish · Betta (male) · Black neon tetra · Black phantom tetra · Black ruby barb · Bleeding heart tetra · Bristlenose pleco · Bronze corydoras · Bumblebee goby · Cardinal tetra · Celestial pearl danio · Checkerboard barb · Cherry barb · Chili rasbora · Clown killifish · Clown pleco · Cockatoo dwarf cichlid · Colombian tetra · Dwarf gourami · Dwarf neon rainbowfish · Dwarf pencilfish
Avoid with Congo tetra
Black ghost knifefish (predation) · Boeseman's rainbowfish (temperature) · Common / comet goldfish (temperature) · Convict cichlid (aggression) · Demasoni cichlid (aggression) · Discus (temperature) · Fancy goldfish (temperature) · German blue ram (temperature) · Jack Dempsey (aggression) · Jewel cichlid (aggression) · Medaka (temperature) · Oscar (predation) · Paradise fish (temperature) · Pea puffer (aggression) · Rosy barb (temperature) · Senegal bichir (predation) · White cloud mountain minnow (temperature)
Sources
Checked 2026-11-09 · confidence: high. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.