Can Black Kuhli Loach live with Red Devil Vampire Crab?
Not recommended
Why
- Red Devil Vampire Crab hunts along the bottom and will catch the bottom-dwelling Black Kuhli Loach, especially at night.
- No overlapping pH: Black Kuhli Loach 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 Kuhli Loach | Red Devil Vampire Crab | |
|---|---|---|
| Temperature | 73–86°F | 75–82°F |
| pH | 5.5–7 | 7.5–8 |
| Hardness (GH) | 2–10 dGH | 8–15 dGH |
| Adult size | 3" | 1.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 20 gal | 10 gal |
Together, plan on at least 20 gallons.
Compatible alternatives
Instead of Black Kuhli Loach (to keep Red Devil Vampire Crab):
- Croaking Gourami — 3", peaceful
- Noble Gourami — 3", peaceful
- Betta (Siamese Fighting Fish) — 2.5", semi-aggressive
Instead of Red Devil Vampire Crab (to keep Black Kuhli Loach):
- Thai Micro Pom Pom Crab — 0.8", peaceful
- Pom Pom Crab — 1", semi-aggressive
- Thai Micro Crab — 0.4", peaceful
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Design a tank with Black Kuhli Loach, Red Devil Vampire Crab →Everything compatible with Black Kuhli Loach · …with Red Devil Vampire Crab