Can Cajun Dwarf Crayfish live with Vampire Shrimp?
Caution — with care
Why
- Cajun Dwarf Crayfish does not belong with Vampire Shrimp. Puffers and crayfish are built to eat invertebrates and will take shrimp whatever the size difference — a pea puffer is smaller than an amano and still hunts it — and goldfish both harass shrimp and want cooler water. Keep them in separate tanks.
- Almost no shared temperature: Cajun Dwarf Crayfish wants 65–75°F and Vampire Shrimp wants 75–84°F, so only 75°F suits both — too fine a margin to actually hold.
Sweet spot: both do well at 75–75°F and pH 6.5–7.5 — aim there.
Side-by-side
| Cajun Dwarf Crayfish | Vampire Shrimp | |
|---|---|---|
| Temperature | 65–75°F | 75–84°F |
| pH | 6.5–8 | 6.5–7.5 |
| Hardness (GH) | 5–15 dGH | 6–15 dGH |
| Adult size | 1.5" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 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: A larger tank · An adjustable heater
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
Skapelab plans a complete, buildable planted aquarium around your fish — a hand-illustrated layout, the exact plants and hardscape, a placement map, and a full equipment and shopping list. Free.
Design a tank with Cajun Dwarf Crayfish, Vampire Shrimp →Everything compatible with Cajun Dwarf Crayfish · …with Vampire Shrimp