Compatibility
Dwarf Rasbora × Harlequin rasbora Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Dwarf Rasbora and Harlequin rasbora can usually live together in a well-planted community tank, but size difference should be monitored.
TemperatureA
pHA
HardnessA
FlowA
PredationB
BehaviourA
Generally compatibleA
Envrionmental Factors
Temperature overlap
Dwarf Rasbora: 24.0–26.0 °C
Harlequin rasbora: 22.0–26.0 °C
Shared window: 24.0–26.0°C.
pH overlap
Dwarf Rasbora: 5.0–6.0
Harlequin rasbora: 5.0–7.2
Shared window: 5.0–6.0.
Hardness overlap
Dwarf Rasbora: Very soft → Soft
Harlequin rasbora: Very soft → Medium
Shared hardness bands: 2 (overlap ratio 100%).
Flow match
Dwarf Rasbora: Low
Harlequin rasbora: Low
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 2.00x
Size gap is between 2.0x and 3.0x, so monitor for dominance and mouth-fit risk.
Behaviour risk
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Dwarf Rasbora | Harlequin rasbora |
|---|---|---|
| Adult size | 2.5 cm | 5.0 cm |
| Temperature | 24.0–26.0 °C | 22.0–26.0 °C |
| pH | 5.0–6.0 | 5.0–7.2 |
| Hardness | Very soft → Soft | Very soft → Medium |
| Flow | Low | Low |
| Locations | Malaysia, Indonesia | Indonesia |
Geographic overlap (supporting signal)
Shared: Indonesia
Best tank mates for Dwarf Rasbora
Reference links to curated compatibility pair pages for this species.
Cardinal Tetra
Paracheirodon axelrodi
Cherry barb
Rohanella titteya
Neon tetra
Paracheirodon innesi
Best tank mates for Harlequin rasbora
Reference links to curated compatibility pair pages for this species.
Cardinal Tetra
Paracheirodon axelrodi
Chili Rasbora
Boraras brigittae
Corydoras
Corydoras spp.
Ember Tetra
Hyphessobrycon amandae