Can Electric Blue Crayfish live with Harlequin Rasbora?
Caution — with care
Why
- Electric Blue Crayfish can grab Harlequin Rasbora while it sleeps — only fast mid/top-water fish are reasonably safe.
Sweet spot: both do well at 72–77°F and pH 6.5–7.5 — aim there.
Side-by-side
| Electric Blue Crayfish | Harlequin Rasbora | |
|---|---|---|
| Temperature | 65–77°F | 72–80°F |
| pH | 6.5–8 | 6–7.5 |
| Hardness (GH) | 5–15 dGH | 2–12 dGH |
| Adult size | 5" | 1.75" |
| Temperament | Aggressive | Peaceful |
| Min tank | 30 gal | 15 gal |
Together, plan on at least 30 gallons.
How to make it work
- Only combine with fast, mid/top-water fish and give the tankmates plenty of escape routes.
Where to buy
- Electric Blue Crayfish: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Harlequin 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 Electric Blue Crayfish · …with Harlequin Rasbora