Can Clown Pleco live with Fiddler Crab?
Not recommended
Why
- Fiddler Crab hunts along the bottom and will catch the bottom-dwelling Clown Pleco, especially at night.
- No overlapping water hardness: Clown Pleco wants 4–12 dGH but Fiddler Crab wants 15–25 dGH.
- Only a narrow pH overlap — keep both around 7.5–7.5.
Side-by-side
| Clown Pleco | Fiddler Crab | |
|---|---|---|
| Temperature | 73–82°F | 72–82°F |
| pH | 6–7.5 | 7.5–8.5 |
| Hardness (GH) | 4–12 dGH | 15–25 dGH |
| Adult size | 3.5" | 2" |
| Temperament | Peaceful | Peaceful |
| Min tank | 30 gal | 15 gal |
Together, plan on at least 30 gallons.
Compatible alternatives
Instead of Clown Pleco (to keep Fiddler Crab):
- Dwarf Gourami — 3.5", peaceful
- Scissortail Rasbora — 3.5", peaceful
- Thick-lipped Gourami — 3.5", peaceful
Instead of Fiddler Crab (to keep Clown Pleco):
- Pom Pom Crab — 1", semi-aggressive
- Thai Micro Pom Pom Crab — 0.8", peaceful
- Thai Micro Crab — 0.4", peaceful
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Design a tank with Clown Pleco, Fiddler Crab →Everything compatible with Clown Pleco · …with Fiddler Crab