Compatibility
Harlequin rasbora × Neon tetra Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Harlequin rasbora and Neon tetra can usually live together in a well-planted community tank.
TemperatureA
pHA
HardnessA
FlowA
PredationA
BehaviourA
Generally compatibleA
Envrionmental Factors
Temperature overlap
Harlequin rasbora: 22.0–26.0 °C
Neon tetra: 20.0–26.0 °C
Shared window: 22.0–26.0°C.
pH overlap
Harlequin rasbora: 5.0–7.2
Neon tetra: 5.5–7.5
Shared window: 5.5–7.2.
Hardness overlap
Harlequin rasbora: Very soft → Medium
Neon tetra: Very soft → Medium
Shared hardness bands: 3 (overlap ratio 100%).
Flow match
Harlequin rasbora: Low
Neon tetra: Low
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.25x
Adult size gap is under 2.0x, which is usually a safer ratio.
Behaviour risk
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Harlequin rasbora | Neon tetra |
|---|---|---|
| Adult size | 5.0 cm | 4.0 cm |
| Temperature | 22.0–26.0 °C | 20.0–26.0 °C |
| pH | 5.0–7.2 | 5.5–7.5 |
| Hardness | Very soft → Medium | Very soft → Medium |
| Flow | Low | Low |
| Locations | Indonesia | South America |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
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.
Dwarf Rasbora
Boraras maculatus
Best tank mates for Neon tetra
Reference links to curated compatibility pair pages for this species.
Cardinal Tetra
Paracheirodon axelrodi
Celestial Pearl Danio
Danio margaritatus
Cherry barb
Rohanella titteya
Chili Rasbora
Boraras brigittae