Compatibility
Corydoras × Cardinal Tetra Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Corydoras and Cardinal Tetra can usually live together in a well-planted community tank, but size difference should be monitored.
TemperatureB
pHA
HardnessB
FlowA
PredationB
BehaviourA
Generally compatibleA
Envrionmental Factors
Temperature overlap
Corydoras: 22.0–25.0 °C
Cardinal Tetra: 23.0–27.0 °C
Shared window: 23.0–25.0°C.
pH overlap
Corydoras: 6.0–7.0
Cardinal Tetra: 5.0–7.0
Shared window: 6.0–7.0.
Hardness overlap
Corydoras: Soft → Hard
Cardinal Tetra: Very soft → Soft
Shared hardness bands: 1 (overlap ratio 50%).
Flow match
Corydoras: Medium
Cardinal Tetra: 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 | Corydoras | Cardinal Tetra |
|---|---|---|
| Adult size | 7.0 cm | 3.5 cm |
| Temperature | 22.0–25.0 °C | 23.0–27.0 °C |
| pH | 6.0–7.0 | 5.0–7.0 |
| Hardness | Soft → Hard | Very soft → Soft |
| Flow | Medium | Low |
| Locations | South America | South America |
Geographic overlap (supporting signal)
Shared: South America
Best tank mates for Corydoras
Reference links to curated compatibility pair pages for this species.
Bristlenose Catfish
Ancistrus sp.
Harlequin rasbora
Trigonostigma heteromorpha
Kuhli Loach
Pangio kuhlii
Neon tetra
Paracheirodon innesi
Best tank mates for Cardinal Tetra
Reference links to curated compatibility pair pages for this species.
Chili Rasbora
Boraras brigittae
Dwarf Rasbora
Boraras maculatus
Ember Tetra
Hyphessobrycon amandae
Harlequin rasbora
Trigonostigma heteromorpha