Compatibility
Common Molly × Freshwater Angelfish Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.

Common Molly and Freshwater Angelfish can live together in a well-planted community tank, but territorial behaviour should be monitored and water-parameter overlap should be checked carefully.
TemperatureB
pHC
HardnessB
FlowA
PredationA
BehaviourB
Compatible with cautionB
Envrionmental Factors
Temperature overlap
Common Molly: 18.0–28.0 °C
Freshwater Angelfish: 24.0–30.0 °C
Shared window: 24.0–28.0°C.
pH overlap
Common Molly: 7.5–8.5
Freshwater Angelfish: 6.8–7.8
Shared window: 7.5–7.8.
Hardness overlap
Common Molly: Medium → Hard
Freshwater Angelfish: Soft → Medium
Shared hardness bands: 1 (overlap ratio 50%).
Flow match
Common Molly: Medium
Freshwater Angelfish: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.20x
Adult size gap is under 2.0x, which is usually a safer ratio.
Behaviour risk
- - Freshwater Angelfish: Territorial.
- - Freshwater Angelfish: Predatory.
- - At least one species can be pushy or fin-nippy; monitor closely.
- - Behaviour may vary by tank size and stocking; have a backup plan.
Parameter snapshot
| Parameter | Common Molly | Freshwater Angelfish |
|---|---|---|
| Adult size | 10.0 cm | 12.0 cm |
| Temperature | 18.0–28.0 °C | 24.0–30.0 °C |
| pH | 7.5–8.5 | 6.8–7.8 |
| Hardness | Medium → Hard | Soft → Medium |
| Flow | Medium | Medium |
| Locations | Mexico, South America | South America |
Geographic overlap (supporting signal)
Shared: South America
Best tank mates for Common Molly
Reference links to curated compatibility pair pages for this species.

Cherry barb
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Guppy
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Platy
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Swordtail
Xiphophorus hellerii