Compatibility
Guppy × Chili Rasbora Compatibility
Compatibility calculated based on predation risk, behaviour profile, and water-parameter overlap.


Guppy and Chili Rasbora are not recommended together in most community setups, but size difference should be monitored and water-parameter overlap should be checked carefully.
TemperatureA
pHC
HardnessC
FlowA
PredationB
BehaviourA
Not recommendedC
Envrionmental Factors
Temperature overlap
Guppy: 20.0–28.0 °C
Chili Rasbora: 24.0–28.0 °C
Shared window: 24.0–28.0°C.
pH overlap
Guppy: 7.0–8.0
Chili Rasbora: 4.0–7.0
Shared window: 7.0–7.0.
Hardness overlap
Guppy: Medium → Very hard
Chili Rasbora: Very soft → Soft
No shared hardness band is present.
Flow match
Guppy: Medium
Chili Rasbora: Low
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
- - Both species are generally peaceful; behaviour conflict risk is low.
Parameter snapshot
| Parameter | Guppy | Chili Rasbora |
|---|---|---|
| Adult size | 5.0 cm | 2.5 cm |
| Temperature | 20.0–28.0 °C | 24.0–28.0 °C |
| pH | 7.0–8.0 | 4.0–7.0 |
| Hardness | Medium → Very hard | Very soft → Soft |
| Flow | Medium | Low |
| Locations | South America, Barbados | Southern Borneo, Indonesia |
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 Chili Rasbora
Reference links to curated compatibility pair pages for this species.

Cardinal Tetra
Paracheirodon axelrodi

Cherry barb
Rohanella titteya

Ember Tetra
Hyphessobrycon amandae

Harlequin rasbora
Trigonostigma heteromorpha