Harlequin Rasbora
Harlequin Rasbora is a peaceful freshwater fish that needs a tank of at least 10 gallons (38 L), water at 72-80°F (22-27°C) and a pH of 6-7.5.
Full care guide for Harlequin Rasbora
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Quick facts
Mid-water schooling fish. Great community tank fish. Keep 8+.
| Minimum tank | 10 gallons (38 L) |
|---|---|
| Temperature | 72-80°F (22-27°C) |
| pH | 6-7.5 |
| Temperament | Peaceful |
| Swim level | Middle |
| Group size | 8 or more together |
| Tank type | Freshwater |
Good tank mates
Ranked by water overlap and temperament, using the same checks as the MyAquaLog compatibility tool.
- Corydoras Catfishmin tank 10 gal
Temperature overlap 72-78°F, pH overlap 6-7.5. Both species are peaceful.
- Neon Tetramin tank 10 gal
Temperature overlap 72-80°F, pH overlap 6-7. Both species are peaceful.
- Otocinclusmin tank 10 gal
Temperature overlap 72-79°F, pH overlap 6-7.5. Both species are peaceful.
- Plecostomusmin tank 30 gal
Temperature overlap 72-80°F, pH overlap 6.5-7.5. Both species are peaceful.
- Siamese Algae Eatermin tank 30 gal
Temperature overlap 75-79°F, pH overlap 6-7.5. Both species are peaceful.
- Celestial Pearl Daniomin tank 10 gal
Temperature overlap 73-79°F, pH overlap 6.5-7.5. Both species are peaceful.
- Espei Rasboramin tank 10 gal
Temperature overlap 72-79°F, pH overlap 6-7. Both species are peaceful.
- Flame Tetramin tank 10 gal
Temperature overlap 72-80°F, pH overlap 6-7.5. Both species are peaceful.
Avoid with
Pairings that fail the temperament, water-overlap or known-conflict checks.
- Skunk Loachmin tank 30 gal
Aggressive species will harass or eat peaceful fish; temperature overlap 79-80°F is too narrow.
- African Cichlids (Mbuna)min tank 55 gal
Aggressive species will harass or eat peaceful fish; no pH overlap (6-7.5 vs 7.8-8.6).
- Flowerhorn Cichlidmin tank 70 gal
Aggressive species will harass or eat peaceful fish; temperature overlap 80°F is too narrow.
- Tropheusmin tank 75 gal
Aggressive species will harass or eat peaceful fish; no pH overlap (6-7.5 vs 8-9).
- Oscar Fishmin tank 55 gal
Aggressive species will harass or eat peaceful fish.
Harlequin Rasbora pairing checks
One-to-one checks against other popular species, with the reasons for each verdict.
- Amano Shrimp yes
- Angelfish with caution
- Betta Fish with caution
- Bristlenose Pleco yes
- Cardinal Tetra yes
- Cherry Shrimp yes
- Corydoras Catfish yes
- Discus no
- Dwarf Gourami with caution
- Goldfish no
- Guppy yes
- Kuhli Loach yes
- Molly Fish yes
- Mystery Snail with caution
- Neon Tetra yes
- Nerite Snail yes
- Oscar Fish no
- Otocinclus yes
- Platy yes
- Plecostomus yes
- Rummy Nose Tetra yes
- Siamese Algae Eater yes
Check your own tank
These lists compare one species against the rest of the database. Your stock list, tank size and bioload change the answer, so log your own tank.
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