Can Fiddler Crab live with Japanese Trapdoor Snail?
Compatible
Why
No conflicts — these two share similar water needs, temperament, and size, and neither is a threat to the other.
Sweet spot: both do well at 72–82°F and pH 7.5–8 — aim there.
Side-by-side
| Fiddler Crab | Japanese Trapdoor Snail | |
|---|---|---|
| Temperature | 72–82°F | 60–82°F |
| pH | 7.5–8.5 | 6.5–8 |
| Hardness (GH) | 15–25 dGH | 6–18 dGH |
| Adult size | 2" | 2" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 10 gal |
Together, plan on at least 15 gallons.
Design the whole tank, not just the stocking
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Design a tank with Fiddler Crab, Japanese Trapdoor Snail →Everything compatible with Fiddler Crab · …with Japanese Trapdoor Snail