Can Black Sail Cory live with Harlequin 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 75–80°F and pH 6–7 — aim there.
Side-by-side
| Black Sail Cory | Harlequin Rasbora | |
|---|---|---|
| Temperature | 75–82°F | 72–80°F |
| pH | 5.5–7 | 6–7.5 |
| Hardness (GH) | 2–10 dGH | 2–12 dGH |
| Adult size | 2" | 1.75" |
| Temperament | Peaceful | Peaceful |
| Min tank | 20 gal | 15 gal |
Together, plan on at least 20 gallons.
Where to buy
- Harlequin Rasbora: buy at The Shrimp Farm · The Shrimp Farm 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.
Design the whole tank, not just the stocking
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Design a tank with Black Sail Cory, Harlequin Rasbora →Everything compatible with Black Sail Cory · …with Harlequin Rasbora