Can Thai Devil Crab live with Carbon Rili Shrimp?
Caution — with care
Why
- Thai Devil Crab is not on the verified shrimp-safe list, so we will not recommend it over a breeding Carbon Rili Shrimp colony. It may well be fine — it simply has not been confirmed by a source, and an unverified guess is not worth the colony.
- Almost no shared temperature: Thai Devil Crab wants 75–84°F and Carbon Rili Shrimp wants 65–75°F, so only 75°F suits both — too fine a margin to actually hold.
- Thai Devil Crab hunts shrimp, though Carbon Rili Shrimp is nearly its own size — losses should be rare with cover.
- Thai Devil Crab will eat Carbon Rili Shrimp shrimplets. The colony still grows if there is moss or another dense hiding place for the babies.
- Only a narrow pH overlap — keep both around 7.5–7.8.
Sweet spot: both do well at 75–75°F and pH 7.5–7.8 — aim there.
Side-by-side
| Thai Devil Crab | Carbon Rili Shrimp | |
|---|---|---|
| Temperature | 75–84°F | 65–75°F |
| pH | 7.5–8.5 | 6.5–7.8 |
| Hardness (GH) | 8–18 dGH | 6–15 dGH |
| Adult size | 2" | 1.5" |
| Temperament | Semi-aggressive | Peaceful |
| Min tank | 20 gal | 10 gal |
Together, plan on at least 20 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: An adjustable heater · GH remineraliser
Where to buy
- Carbon Rili 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 Thai Devil Crab, Carbon Rili Shrimp →Everything compatible with Thai Devil Crab · …with Carbon Rili Shrimp