Compatibility
Platy × Swordtail Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.


Platy and Swordtail can usually live together in a well-planted community tank, but size difference should be monitored.
TemperatureB
pHA
HardnessA
FlowA
PredationB
BehaviourA
Data coverage note: 1 key check marked unknown.
Generally compatibleA
Envrionmental Factors
Temperature overlap
Platy: 20.0–25.0 °C
Swordtail: -
One or both species are missing range data for this check.
pH overlap
Platy: 7.0–8.0
Swordtail: 7.0–8.0
Shared window: 7.0–8.0.
Hardness overlap
Platy: Medium → Hard
Swordtail: Medium → Hard
Shared hardness bands: 2 (overlap ratio 100%).
Flow match
Platy: Medium
Swordtail: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 2.15x
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 | Platy | Swordtail |
|---|---|---|
| Adult size | 6.5 cm | 14.0 cm |
| Temperature | 20.0–25.0 °C | - |
| pH | 7.0–8.0 | 7.0–8.0 |
| Hardness | Medium → Hard | Medium → Hard |
| Flow | Medium | Medium |
| Locations | Central America | Central America |
Geographic overlap (supporting signal)
Shared: Central America
Best tank mates for Platy
Reference links to curated compatibility pair pages for this species.

Cherry barb
Rohanella titteya
Common Molly
Poecilia sphenops

Guppy
Poecilia reticulata
Best tank mates for Swordtail
Reference links to curated compatibility pair pages for this species.
Common Molly
Poecilia sphenops

Guppy
Poecilia reticulata