Compatibility
Ram × Swordtail Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Ram and Swordtail are not recommended together in most community setups, but territorial behaviour should be monitored, size difference should be monitored, and water-parameter overlap should be checked carefully.
TemperatureB
pHC
HardnessC
FlowA
PredationB
BehaviourB
Data coverage note: 1 key check marked unknown.
Not recommendedC
Envrionmental Factors
Temperature overlap
Ram: 26.0–30.0 °C
Swordtail: -
One or both species are missing range data for this check.
pH overlap
Ram: 5.5–7.0
Swordtail: 7.0–8.0
Shared window: 7.0–7.0.
Hardness overlap
Ram: Very soft → Soft
Swordtail: Medium → Hard
No shared hardness band is present.
Flow match
Ram: Low
Swordtail: Medium
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
- - Ram: Territorial.
- - 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 | Ram | Swordtail |
|---|---|---|
| Adult size | 7.0 cm | 14.0 cm |
| Temperature | 26.0–30.0 °C | - |
| pH | 5.5–7.0 | 7.0–8.0 |
| Hardness | Very soft → Soft | Medium → Hard |
| Flow | Low | Medium |
| Locations | South America | Central America |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Swordtail
Reference links to curated compatibility pair pages for this species.
Common Molly
Poecilia sphenops
Guppy
Poecilia reticulata
Platy
Xiphophorus maculatus