Can harlequin rasboras live with neon tetras?
✅ Compatible Yes
- No conflicts found: temperature, pH, size, temperament and fin-nipping checks all pass.
| Harlequin rasbora | Neon tetra | |
| Temperature | 70–82 °F (21–28 °C) | 70–77 °F (21–25 °C) |
| pH | 5–7.5 | 4–7.5 |
| Adult size | 2.0 in (5 cm) | 1.4 in (3.5 cm) |
| Temperament | Peaceful | Peaceful |
| Swims in | Middle | Middle |
| Minimum tank | 20 gal | 20 gal |
Shared temperature: 70–77 °F (21–25 °C) · Shared pH: 5–7.5
Tips if you keep them together
- Keep harlequin rasboras in a group of at least 6.
- Keep neon tetras in a group of at least 6.
- Use a tank of at least 20 US gallons with plenty of plants and hiding places.
- Set the heater around 73 °F (23 °C), the middle of the shared range.
See all harlequin rasbora tank mates and neon tetra tank mates, or add more species in the checker.
FAQ
Can harlequin rasboras live with neon tetras?
Yes. Harlequin rasboras and neon tetras share water conditions and temperament.
What temperature for harlequin rasboras and neon tetras?
Harlequin rasbora: 70–82 °F (21–28 °C). Neon tetra: 70–77 °F (21–25 °C). Shared range: 70–77 °F (21–25 °C).
What size tank for harlequin rasboras and neon tetras?
At least 20 US gallons, more as you add fish.
Note: Compatibility depends on individual temperament, tank size, decor and how fish are introduced. Our verdicts use conservative rules applied to published care data (see methodology). They are guidance, not a guarantee. Quarantine new fish and watch for chasing, torn fins or hiding.