Can Harlequin Rasbora Live With Molly?
Harlequin Rasbora and Molly CAN coexist, but with some risks. Careful setup and monitoring required.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 72–82°F.
pH
✓ Compatible
Good pH overlap at 7.0–7.5.
Size
✓ Compatible
Compatible sizes (2" and 4").
Temperament
✓ Compatible
Both fish have compatible temperaments.
Swim Level
✓ Compatible
Swim level compatibility is fine.
Trait Conflict
⚠ Use Caution
Molly may prefer brackish water conditions, which Harlequin Rasbora cannot tolerate long-term.
Important Notes
- Harlequin Rasbora is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 20 gallons
| Parameter | Harlequin Rasbora | Molly |
|---|---|---|
| Temperature | 72–82°F | 72–82°F |
| pH | 6–7.5 | 7–8.5 |
| Max Size | 2" | 4" |
| Temperament | Peaceful | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 10 gal | 20 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.