Compatibility
Betta × Corydoras Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Betta and Corydoras can live together in a well-planted community tank, but territorial behaviour should be monitored.
TemperatureB
pHA
HardnessB
FlowA
PredationA
BehaviourB
Compatible with cautionB
Envrionmental Factors
Temperature overlap
Betta: 24.0–30.0 °C
Corydoras: 22.0–25.0 °C
Shared window: 24.0–25.0°C.
pH overlap
Betta: 6.0–7.5
Corydoras: 6.0–7.0
Shared window: 6.0–7.0.
Hardness overlap
Betta: Very soft → Medium
Corydoras: Soft → Hard
Shared hardness bands: 2 (overlap ratio 67%).
Flow match
Betta: Low
Corydoras: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.17x
Adult size gap is under 2.0x, which is usually a safer ratio.
Behaviour risk
- - Betta: Territorial.
- - At least one species can be pushy or fin-nippy; monitor closely.
- - Behaviour may vary by tank size and stocking; have a backup plan.
Parameter snapshot
| Parameter | Betta | Corydoras |
|---|---|---|
| Adult size | 6.0 cm | 7.0 cm |
| Temperature | 24.0–30.0 °C | 22.0–25.0 °C |
| pH | 6.0–7.5 | 6.0–7.0 |
| Hardness | Very soft → Medium | Soft → Hard |
| Flow | Low | Medium |
| Locations | Cambodia, Thailand | South America |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Corydoras
Reference links to curated compatibility pair pages for this species.
Bristlenose Catfish
Ancistrus sp.
Cardinal Tetra
Paracheirodon axelrodi
Harlequin rasbora
Trigonostigma heteromorpha
Kuhli Loach
Pangio kuhlii