Compatibility
Harlequin rasbora × Corydoras Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Harlequin rasbora and Corydoras can usually live together in a well-planted community tank.
TemperatureA
pHA
HardnessB
FlowA
PredationA
BehaviourA
Generally compatibleA
Envrionmental Factors
Temperature overlap
Harlequin rasbora: 22.0–26.0 °C
Corydoras: 22.0–25.0 °C
Shared window: 22.0–25.0°C.
pH overlap
Harlequin rasbora: 5.0–7.2
Corydoras: 6.0–7.0
Shared window: 6.0–7.0.
Hardness overlap
Harlequin rasbora: Very soft → Medium
Corydoras: Soft → Hard
Shared hardness bands: 2 (overlap ratio 67%).
Flow match
Harlequin rasbora: Low
Corydoras: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.40x
Adult size gap is under 2.0x, which is usually a safer ratio.
Behaviour risk
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Harlequin rasbora | Corydoras |
|---|---|---|
| Adult size | 5.0 cm | 7.0 cm |
| Temperature | 22.0–26.0 °C | 22.0–25.0 °C |
| pH | 5.0–7.2 | 6.0–7.0 |
| Hardness | Very soft → Medium | Soft → Hard |
| Flow | Low | Medium |
| Locations | Indonesia | South America |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Harlequin rasbora
Reference links to curated compatibility pair pages for this species.
Cardinal Tetra
Paracheirodon axelrodi
Chili Rasbora
Boraras brigittae
Dwarf Rasbora
Boraras maculatus
Ember Tetra
Hyphessobrycon amandae
Best tank mates for Corydoras
Reference links to curated compatibility pair pages for this species.
Bristlenose Catfish
Ancistrus sp.
Cardinal Tetra
Paracheirodon axelrodi
Kuhli Loach
Pangio kuhlii
Neon tetra
Paracheirodon innesi