Can Julii Cory live with Fiddler Crab?
Not recommended
Why
- Fiddler Crab hunts along the bottom and will catch the bottom-dwelling Julii Cory, especially at night.
- No overlapping water hardness: Julii Cory wants 2–12 dGH but Fiddler Crab wants 15–25 dGH.
- Only a narrow pH overlap — keep both around 7.5–7.8.
Side-by-side
| Julii Cory | Fiddler Crab | |
|---|---|---|
| Temperature | 72–79°F | 72–82°F |
| pH | 6–7.8 | 7.5–8.5 |
| Hardness (GH) | 2–12 dGH | 15–25 dGH |
| Adult size | 2" | 2" |
| Temperament | Peaceful | Peaceful |
| Min tank | 20 gal | 15 gal |
Together, plan on at least 20 gallons.
Compatible alternatives
Instead of Julii Cory (to keep Fiddler Crab):
- Cardinal Tetra — 2", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
- Cherry Barb — 2", peaceful
- False Rummy Nose Tetra — 2", peaceful
Instead of Fiddler Crab (to keep Julii Cory):
- Pom Pom Crab — 1", semi-aggressive
- Thai Micro Pom Pom Crab — 0.8", peaceful
- Thai Micro Crab — 0.4", peaceful
Where to buy
- Julii Cory: 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 Julii Cory, Fiddler Crab →Everything compatible with Julii Cory · …with Fiddler Crab