Can Black Sail Cory live with Red Devil Vampire Crab?
Not recommended
Why
- Red Devil Vampire Crab hunts along the bottom and will catch the bottom-dwelling Black Sail Cory, especially at night.
- No overlapping pH: Black Sail Cory wants 5.5–7 but Red Devil Vampire Crab wants 7.5–8.
- Only a narrow water hardness overlap — keep both around 8–10 dGH.
Side-by-side
| Black Sail Cory | Red Devil Vampire Crab | |
|---|---|---|
| Temperature | 75–82°F | 75–82°F |
| pH | 5.5–7 | 7.5–8 |
| Hardness (GH) | 2–10 dGH | 8–15 dGH |
| Adult size | 2" | 1.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 20 gal | 10 gal |
Together, plan on at least 20 gallons.
Compatible alternatives
Instead of Black Sail Cory (to keep Red Devil Vampire Crab):
- Cardinal Tetra — 2", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
- Cherry Barb — 2", peaceful
- False Rummy Nose Tetra — 2", peaceful
Instead of Red Devil Vampire Crab (to keep Black Sail Cory):
- Thai Micro Pom Pom Crab — 0.8", peaceful
- Pom Pom Crab — 1", semi-aggressive
- Thai Micro Crab — 0.4", peaceful
Design the whole tank, not just the stocking
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Design a tank with Black Sail Cory, Red Devil Vampire Crab →Everything compatible with Black Sail Cory · …with Red Devil Vampire Crab