Can Harlequin Rasbora Live With Hillstream Loach?
Harlequin Rasbora and Hillstream Loach are compatible. Temperature overlap 73–75°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Harlequin Rasbora | Hillstream Loach | Overlap |
|---|---|---|---|
| Temperature | 73–82°F | 65–75°F | 73–75°F ✓ |
| pH Range | 6–7.5 | 6.5–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2" | 3" | Similar ✓ |
| Min Tank Size | 10 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Herbivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Harlequin Rasbora + Hillstream Loach
To keep Harlequin Rasbora and Hillstream Loach together, you need at minimum a 20 gallon tank. Harlequin Rasbora should be kept in a school of 6+. Hillstream Loach should be kept in a school of 3+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Harlequin Rasbora
Trigonostigma heteromorpha
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 →Hillstream Loach
Sewellia lineolata
Hillstream loaches are fascinating flat-bodied fish that resemble tiny stingrays. They are specialized for life in fast-flowing, oxygen-rich streams and use their modified pelvic and pectoral fins to grip smooth rocks in strong current. Their unique appearance, algae-eating habits, and cool-water preference make them popular with experienced fishkeepers looking for something different.
Full care guide →