Can Discus live with Red Devil Vampire Crab?
Caution — with care
Why
- Red Devil Vampire Crab can grab Discus while it sleeps — only fast mid/top-water fish are reasonably safe.
- Almost no shared temperature: Discus wants 82–88°F and Red Devil Vampire Crab wants 75–82°F, so only 82°F suits both — too fine a margin to actually hold.
- No overlapping pH: Discus wants 5.5–7 but Red Devil Vampire Crab wants 7.5–8.
- Only a narrow water hardness overlap — keep both around 8–8 dGH.
Side-by-side
| Discus | Red Devil Vampire Crab | |
|---|---|---|
| Temperature | 82–88°F | 75–82°F |
| pH | 5.5–7 | 7.5–8 |
| Hardness (GH) | 1–8 dGH | 8–15 dGH |
| Adult size | 8" | 1.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 55 gal | 10 gal |
Together, plan on at least 55 gallons.
How to make it work
- Only combine with fast, mid/top-water fish and give the tankmates plenty of escape routes.
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: An adjustable heater · GH remineraliser
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Design a tank with Discus, Red Devil Vampire Crab →Everything compatible with Discus · …with Red Devil Vampire Crab