Compatibility
Common Molly × Endler's livebearer Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.

Common Molly and Endler's livebearer are not recommended together in most community setups, but size difference should be monitored.
TemperatureA
pHA
HardnessA
FlowA
PredationC
BehaviourA
Not recommendedC
Envrionmental Factors
Temperature overlap
Common Molly: 18.0–28.0 °C
Endler's livebearer: 24.0–29.0 °C
Shared window: 24.0–28.0°C.
pH overlap
Common Molly: 7.5–8.5
Endler's livebearer: 7.0–8.5
Shared window: 7.5–8.5.
Hardness overlap
Common Molly: Medium → Hard
Endler's livebearer: Medium → Hard
Shared hardness bands: 2 (overlap ratio 100%).
Flow match
Common Molly: Medium
Endler's livebearer: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 3.33x
Size gap is above 3.0x, which can increase predation pressure.
Behaviour risk
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Common Molly | Endler's livebearer |
|---|---|---|
| Adult size | 10.0 cm | 3.0 cm |
| Temperature | 18.0–28.0 °C | 24.0–29.0 °C |
| pH | 7.5–8.5 | 7.0–8.5 |
| Hardness | Medium → Hard | Medium → Hard |
| Flow | Medium | Medium |
| Locations | Mexico, South America | Laguna de Los Patos, Venezuela |
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

Platy
Xiphophorus maculatus

Swordtail
Xiphophorus hellerii
Best tank mates for Endler's livebearer
Reference links to curated compatibility pair pages for this species.

Cherry barb
Rohanella titteya

Guppy
Poecilia reticulata