Compatibility

Betta × Bristlenose Catfish Compatibility

Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.

Betta
Species A
Betta
Betta splendens
View speciesView Betta genus
Bristlenose Catfish
Species B
Bristlenose Catfish
Ancistrus sp.
View speciesView Ancistrus genus

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
ParameterBettaBristlenose Catfish
Adult size6.0 cm15.0 cm
Temperature24.0–30.0 °C23.0–27.0 °C
pH6.0–7.55.5–8.0
HardnessVery soft → MediumSoft → Hard
FlowLowMedium
LocationsCambodia, ThailandSouth 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.

Corydoras
Corydoras
Corydoras spp.
Kuhli Loach
Kuhli Loach
Pangio kuhlii

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