Can Fiddler Crab live with Vampire Shrimp?
Light caution
Why
- Fiddler Crab hunts shrimp, though Vampire Shrimp is nearly its own size — losses should be rare with cover.
- Only a narrow pH overlap — keep both around 7.5–7.5.
- Only a narrow water hardness overlap — keep both around 15–15 dGH.
Sweet spot: both do well at 75–82°F and pH 7.5–7.5 — aim there.
Side-by-side
| Fiddler Crab | Vampire Shrimp | |
|---|---|---|
| Temperature | 72–82°F | 75–84°F |
| pH | 7.5–8.5 | 6.5–7.5 |
| Hardness (GH) | 15–25 dGH | 6–15 dGH |
| Adult size | 2" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 30 gal |
Together, plan on at least 30 gallons.
How to make it work
- Keep a large, established shrimp colony in a heavily planted tank with moss and cover so enough survive to breed.
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: GH remineraliser
Where to buy
- Vampire Shrimp: 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 Fiddler Crab, Vampire Shrimp →Everything compatible with Fiddler Crab · …with Vampire Shrimp