Compatibility
Neon tetra × Swordtail Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Neon tetra and Swordtail are not recommended together in most community setups, but size difference should be monitored.
TemperatureB
pHB
HardnessB
FlowA
PredationC
BehaviourA
Data coverage note: 1 key check marked unknown.
Not recommendedC
Envrionmental Factors
Temperature overlap
Neon tetra: 20.0–26.0 °C
Swordtail: -
One or both species are missing range data for this check.
pH overlap
Neon tetra: 5.5–7.5
Swordtail: 7.0–8.0
Shared window: 7.0–7.5.
Hardness overlap
Neon tetra: Very soft → Medium
Swordtail: Medium → Hard
Shared hardness bands: 1 (overlap ratio 50%).
Flow match
Neon tetra: Low
Swordtail: Medium
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 3.50x
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 | Neon tetra | Swordtail |
|---|---|---|
| Adult size | 4.0 cm | 14.0 cm |
| Temperature | 20.0–26.0 °C | - |
| pH | 5.5–7.5 | 7.0–8.0 |
| Hardness | Very soft → Medium | Medium → Hard |
| Flow | Low | Medium |
| Locations | South America | Central America |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
Best tank mates for Neon tetra
Reference links to curated compatibility pair pages for this species.
Cardinal Tetra
Paracheirodon axelrodi
Celestial Pearl Danio
Danio margaritatus
Cherry barb
Rohanella titteya
Chili Rasbora
Boraras brigittae
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