Compatibility
Discus × Tiger Barb Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Discus and Tiger Barb are not recommended together in most community setups, but territorial behaviour should be monitored, size difference should be monitored, and water-parameter overlap should be checked carefully.
TemperatureC
pHC
HardnessB
FlowA
PredationB
BehaviourC
Not recommendedC
Envrionmental Factors
Temperature overlap
Discus: 27.0–30.0 °C
Tiger Barb: 21.0–26.0 °C
No shared operating range is present between the recorded values.
pH overlap
Discus: 6.0–6.5
Tiger Barb: 6.5–7.5
Shared window: 6.5–6.5.
Hardness overlap
Discus: Very soft → Soft
Tiger Barb: Soft → Hard
Shared hardness bands: 1 (overlap ratio 50%).
Flow match
Discus: Low
Tiger Barb: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 2.13x
Size gap is between 2.0x and 3.0x, so monitor for dominance and mouth-fit risk.
Behaviour risk
- - Discus: Hierarchical.
- - Tiger Barb: Fin Nipper.
- - Tiger Barb: Hierarchical.
- - Both species show territorial or semi-aggressive behaviour; conflicts are likely.
Parameter snapshot
| Parameter | Discus | Tiger Barb |
|---|---|---|
| Adult size | 17.0 cm | 8.0 cm |
| Temperature | 27.0–30.0 °C | 21.0–26.0 °C |
| pH | 6.0–6.5 | 6.5–7.5 |
| Hardness | Very soft → Soft | Soft → Hard |
| Flow | Low | Medium |
| Locations | Rio Negro, Brazil | Borneo, Sumatra |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Discus
Reference links to curated compatibility pair pages for this species.
Kuhli Loach
Pangio kuhlii