Compatibility
Guppy × Discus Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.
Guppy and Discus are not recommended together in most community setups, but size difference should be monitored and water-parameter overlap should be checked carefully.
TemperatureB
pHC
HardnessC
FlowA
PredationC
BehaviourA
Not recommendedC
Envrionmental Factors
Temperature overlap
Guppy: 20.0–28.0 °C
Discus: 27.0–30.0 °C
Shared window: 27.0–28.0°C.
pH overlap
Guppy: 7.0–8.0
Discus: 6.0–6.5
No shared operating range is present between the recorded values.
Hardness overlap
Guppy: Medium → Very hard
Discus: Very soft → Soft
No shared hardness band is present.
Flow match
Guppy: Medium
Discus: Low
Flow preferences do not conflict directly (no low-vs-high clash).
Behavioural Factors
Predation risk (size ratio)
Adult size ratio: 3.40x
Size gap is above 3.0x, which can increase predation pressure.
Behaviour risk
- - Discus: Hierarchical.
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Guppy | Discus |
|---|---|---|
| Adult size | 5.0 cm | 17.0 cm |
| Temperature | 20.0–28.0 °C | 27.0–30.0 °C |
| pH | 7.0–8.0 | 6.0–6.5 |
| Hardness | Medium → Very hard | Very soft → Soft |
| Flow | Medium | Low |
| Locations | South America, Barbados | Rio Negro, Brazil |
Geographic overlap (supporting signal)
No recorded overlap in our dataset.
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 Discus
Reference links to curated compatibility pair pages for this species.
Kuhli Loach
Pangio kuhlii