Compatibility
Betta × Bristlenose Catfish Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.


Betta and Bristlenose Catfish can live together in a well-planted community tank, but territorial behaviour should be monitored and size difference should be monitored.
TemperatureA
pHA
HardnessB
FlowA
PredationB
BehaviourB
Compatible with cautionB
Envrionmental Factors
Temperature overlap
Betta: 24.0–30.0 °C
Bristlenose Catfish: 23.0–27.0 °C
Shared window: 24.0–27.0°C.
pH overlap
Betta: 6.0–7.5
Bristlenose Catfish: 5.5–8.0
Shared window: 6.0–7.5.
Hardness overlap
Betta: Very soft → Medium
Bristlenose Catfish: Soft → Hard
Shared hardness bands: 2 (overlap ratio 67%).
Flow match
Betta: Low
Bristlenose Catfish: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 2.50x
Size gap is between 2.0x and 3.0x, so monitor for dominance and mouth-fit risk.
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 | Bristlenose Catfish |
|---|---|---|
| Adult size | 6.0 cm | 15.0 cm |
| Temperature | 24.0–30.0 °C | 23.0–27.0 °C |
| pH | 6.0–7.5 | 5.5–8.0 |
| 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 Bristlenose Catfish
Reference links to curated compatibility pair pages for this species.

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