Can Harlequin Rasbora Live With Peacock Cichlid (Aulonocara)?
❌Not Compatible
Incompatible pH. Harlequin Rasbora needs 6.0–7.5, Peacock Cichlid needs 7.8–8.6.
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Parameter Comparison
| Parameter | Harlequin Rasbora | Peacock Cichlid (Aulonocara) | Overlap |
|---|---|---|---|
| Temperature | 72–81°F | 75–82°F | 76–82°F ✓ |
| pH Range | 5.5–7 | 7.5–8.5 | No overlap ✗ |
| Temperament | peaceful | semi-aggressive | Monitor ⚠ |
| Max Size | 2" | 5.9" | Similar ✓ |
| Min Tank Size | 11 gal | 53 gal | 55 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | intermediate | — |
Species Profiles
Harlequin Rasbora
Trigonostigma heteromorpha
beginnerpeaceful11+ gal
The Harlequin Rasbora (Trigonostigma heteromorpha) is a beginner freshwater species known for its orange-pink, black triangle coloration. Classic schooling fish. Mid.
Full care guide →Peacock Cichlid (Aulonocara)
Aulonocara spp.
intermediatesemi-aggressive53+ gal
The Peacock Cichlid (Aulonocara) (Aulonocara spp.) is a intermediate freshwater species known for its blue, yellow, orange (varies by species) coloration. Many colorful species. Mid to Bottom.
Full care guide →Other Compatible Tank Mates
For Harlequin Rasbora:
For Peacock Cichlid (Aulonocara):
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