Check a tank with Harlequin rasbora
Good tank mates for Harlequin rasbora
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 dwarf frog · Amano shrimp · Assassin snail · Betta (male) · Black neon tetra · Black phantom tetra · Black ruby barb · Black skirt tetra · Bleeding heart tetra · Bloodfin tetra · Bristlenose pleco · Bronze corydoras · Buenos Aires tetra · Bumblebee goby · Cardinal tetra · Celestial pearl danio · Checkerboard barb · Cherry barb · Cherry shrimp · Clown killifish · Clown pleco · Cockatoo dwarf cichlid · Colombian tetra · Congo tetra
Avoid with Harlequin rasbora
Agassiz's dwarf cichlid (temperature) · Banded archerfish (predation) · Black ghost knifefish (predation) · Boeseman's rainbowfish (temperature) · Common / comet goldfish (temperature) · Convict cichlid (temperature) · Demasoni cichlid (aggression) · Discus (temperature) · Fancy goldfish (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) · Senegal bichir (predation)
Sources
Checked 2026-11-09 · confidence: high. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.