Long fins: avoid known fin nippers such as tiger barbs and serpae tetras.
Check a tank with Lyretail killifish
Good tank mates for Lyretail killifish
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.
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 · Clown killifish · Clown pleco · Colombian tetra · Congo tetra · Dwarf neon rainbowfish · Dwarf pencilfish · Emerald dwarf rasbora · Emperor tetra · Gardneri killifish · Gold barb · Golden pencilfish · Guppy · Habrosus corydoras
Avoid with Lyretail killifish
Agassiz's dwarf cichlid (temperature) · Banded archerfish (temperature) · Banjo catfish (temperature) · Black ghost knifefish (predation) · Boeseman's rainbowfish (temperature) · Chili rasbora (temperature) · Clown loach (temperature) · Convict cichlid (temperature) · Demasoni cichlid (aggression) · Discus (temperature) · Firemouth cichlid (temperature) · German blue ram (temperature) · Jack Dempsey (predation) · Jewel cichlid (aggression) · Moonlight gourami (temperature) · Oscar (predation) · Paradise fish (aggression) · Pea puffer (aggression)
Sources
Checked 2026-11-09 · confidence: medium. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.