Can Harlequin Rasbora Live With Peacock Cichlid?
❌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 | Overlap |
|---|---|---|---|
| Temperature | 73–82°F | 76–82°F | 76–82°F ✓ |
| pH Range | 6–7.5 | 7.8–8.6 | No overlap ✗ |
| Temperament | peaceful | semi-aggressive | Monitor ⚠ |
| Max Size | 2" | 6" | Similar ✓ |
| Min Tank Size | 10 gal | 55 gal | 55 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | intermediate | — |
Species Profiles
Harlequin Rasbora
Trigonostigma heteromorpha
beginnerpeaceful10+ gal
Harlequin rasboras are elegant, copper-colored schooling fish with a distinctive black triangular patch on their body. They are one of the most peaceful and hardy community fish available, making them ideal for beginners. In schools of 8+, they display beautiful coordinated swimming behavior.
Full care guide →Peacock Cichlid
Aulonocara spp.
intermediatesemi-aggressive55+ gal
The Peacock Cichlid (Aulonocara spp.) is a intermediate-level freshwater fish growing to 6 inches. Semi-aggressive temperament, minimum 55 gallon tank.
Full care guide →Other Compatible Tank Mates
For Harlequin Rasbora:
For Peacock Cichlid:
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