Compatibility
Common Molly × Platy Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Common Molly and Platy can usually live together in a well-planted community tank.
TemperatureA
pHB
HardnessA
FlowA
PredationA
BehaviourA
Generally compatibleA
Envrionmental Factors
Temperature overlap
Common Molly: 18.0–28.0 °C
Platy: 20.0–25.0 °C
Shared window: 20.0–25.0°C.
pH overlap
Common Molly: 7.5–8.5
Platy: 7.0–8.0
Shared window: 7.5–8.0.
Hardness overlap
Common Molly: Medium → Hard
Platy: Medium → Hard
Shared hardness bands: 2 (overlap ratio 100%).
Flow match
Common Molly: Medium
Platy: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.54x
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 | Common Molly | Platy |
|---|---|---|
| Adult size | 10.0 cm | 6.5 cm |
| Temperature | 18.0–28.0 °C | 20.0–25.0 °C |
| pH | 7.5–8.5 | 7.0–8.0 |
| Hardness | Medium → Hard | Medium → Hard |
| Flow | Medium | Medium |
| Locations | Mexico, South America | Central America |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Common Molly
Reference links to curated compatibility pair pages for this species.
Cherry barb
Rohanella titteya
Guppy
Poecilia reticulata
Swordtail
Xiphophorus hellerii
Best tank mates for Platy
Reference links to curated compatibility pair pages for this species.
Cherry barb
Rohanella titteya
Guppy
Poecilia reticulata
Swordtail
Xiphophorus hellerii