Can Otocinclus Live With Harlequin Rasbora?
Otocinclus Catfish and Harlequin Rasbora are compatible. Temperature overlap 73–79°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Otocinclus | Harlequin Rasbora | Overlap |
|---|---|---|---|
| Temperature | 70–79°F | 72–81°F | 73–79°F ✓ |
| pH Range | 6–7.5 | 5.5–7 | 6–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 2" | Similar ✓ |
| Min Tank Size | 11 gal | 11 gal | 20 gal minimum together |
| Diet | Herbivore | Omnivore | — |
| Care Level | intermediate | beginner | — |
Tank Requirements for Otocinclus + Harlequin Rasbora
To keep Otocinclus and Harlequin Rasbora together, you need at minimum a 20 gallon tank. Otocinclus should be kept in a school of 6+. Harlequin Rasbora should be kept in a school of 8+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Otocinclus
Otocinclus spp.
The Otocinclus (Otocinclus spp.) is a intermediate freshwater species known for its brown-gray, dark lateral stripe coloration. Small algae eater. Surfaces.
Full care guide →Harlequin Rasbora
Trigonostigma heteromorpha
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 →