Compatibility
Guppy × Neon tetra Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Guppy and Neon tetra can live together in a well-planted community tank, but water-parameter overlap should be checked carefully.
TemperatureA
pHB
HardnessC
FlowA
PredationA
BehaviourA
Compatible with cautionB
Envrionmental Factors
Temperature overlap
Guppy: 20.0–28.0 °C
Neon tetra: 20.0–26.0 °C
Shared window: 20.0–26.0°C.
pH overlap
Guppy: 7.0–8.0
Neon tetra: 5.5–7.5
Shared window: 7.0–7.5.
Hardness overlap
Guppy: Medium → Very hard
Neon tetra: Very soft → Medium
Shared hardness bands: 1 (overlap ratio 33%).
Flow match
Guppy: Medium
Neon tetra: Low
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 1.25x
Adult size gap is under 2.0x, which is usually a safer ratio.
Behaviour risk
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Guppy | Neon tetra |
|---|---|---|
| Adult size | 5.0 cm | 4.0 cm |
| Temperature | 20.0–28.0 °C | 20.0–26.0 °C |
| pH | 7.0–8.0 | 5.5–7.5 |
| Hardness | Medium → Very hard | Very soft → Medium |
| Flow | Medium | Low |
| Locations | South America, Barbados | South America |
Geographic overlap (supporting signal)
Shared: South America
Best tank mates for Guppy
Reference links to curated compatibility pair pages for this species.
Common Molly
Poecilia sphenops
Endler's livebearer
Poecilia wingei
Platy
Xiphophorus maculatus
Swordtail
Xiphophorus hellerii
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