Compatibility
Pigmy Cory × Celestial Pearl Danio Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.


Pigmy Cory and Celestial Pearl Danio can live together in a well-planted community tank, but water-parameter overlap should be checked carefully.
TemperatureB
pHC
HardnessB
FlowA
PredationA
BehaviourA
Compatible with cautionB
Envrionmental Factors
Temperature overlap
Pigmy Cory: 22.0–26.0 °C
Celestial Pearl Danio: 15.0–24.0 °C
Shared window: 22.0–24.0°C.
pH overlap
Pigmy Cory: 6.0–7.2
Celestial Pearl Danio: 7.0–8.0
Shared window: 7.0–7.2.
Hardness overlap
Pigmy Cory: Very soft → Medium
Celestial Pearl Danio: Medium → Hard
Shared hardness bands: 1 (overlap ratio 50%).
Flow match
Pigmy Cory: Low
Celestial Pearl Danio: Low
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.24x
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 | Pigmy Cory | Celestial Pearl Danio |
|---|---|---|
| Adult size | 2.6 cm | 2.1 cm |
| Temperature | 22.0–26.0 °C | 15.0–24.0 °C |
| pH | 6.0–7.2 | 7.0–8.0 |
| Hardness | Very soft → Medium | Medium → Hard |
| Flow | Low | Low |
| Locations | Rio Madeira, Brazil | Myanmar |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Celestial Pearl Danio
Reference links to curated compatibility pair pages for this species.

Emerald Dwarf Rasbora
Danio erythromicron

Head and Tail Light Tetra
Holopristis ocellifera

Honey Gourami
Trichogaster chuna

Neon tetra
Paracheirodon innesi