Can Harlequin Rasbora live with Red-Line Rasbora?
Compatible
Why
No conflicts — these two share similar water needs, temperament, and size, and neither is a threat to the other.
Sweet spot: both do well at 73–80°F and pH 6–7 — aim there.
Side-by-side
| Harlequin Rasbora | Red-Line Rasbora | |
|---|---|---|
| Temperature | 72–80°F | 73–81°F |
| pH | 6–7.5 | 5–7 |
| Hardness (GH) | 2–12 dGH | 1–8 dGH |
| Adult size | 1.75" | 1.75" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 15 gal |
Together, plan on at least 15 gallons.
Where to buy
- Harlequin Rasbora: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Red-Line Rasbora: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Live-animal shipping: add a heat pack below 50°F, expect weather holds above 90°F, and schedule delivery for a moderate week when someone can receive it promptly.
Build a full tank around this stocking →Everything compatible with Harlequin Rasbora · …with Red-Line Rasbora