Can Hillstream Loach Live With Silver Arowana?
❌Not Compatible
Silver Arowana is aggressive and will likely attack or stress tank mates.
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Parameter Comparison
| Parameter | Hillstream Loach | Silver Arowana | Overlap |
|---|---|---|---|
| Temperature | 65–75°F | 75–82°F | 75–75°F ✓ |
| pH Range | 6.5–7.5 | 6–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | aggressive | Aggression risk ✗ |
| Max Size | 3" | 36" | Size mismatch ✗ |
| Min Tank Size | 20 gal | 125 gal | 125 gal minimum together |
| Diet | Herbivore | Carnivore | — |
| Care Level | intermediate | advanced | — |
Species Profiles
Hillstream Loach
Sewellia lineolata
intermediatepeaceful20+ gal
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 →Silver Arowana
Osteoglossum bicirrhosum
advancedaggressive125+ gal
The Silver Arowana (Osteoglossum bicirrhosum) is a advanced-level freshwater fish growing to 36 inches. Aggressive temperament, minimum 125 gallon tank.
Full care guide →Other Compatible Tank Mates
For Hillstream Loach:
For Silver Arowana:
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