Can Flash Pleco (L204) live with Red Claw Crab?
Not recommended
Why
- Red Claw Crab hunts along the bottom and will catch the bottom-dwelling Flash Pleco (L204), especially at night.
- No overlapping water hardness: Flash Pleco (L204) wants 6–7.5 dGH but Red Claw Crab wants 15–25 dGH.
- Only a narrow pH overlap — keep both around 7.5–7.6.
Side-by-side
| Flash Pleco (L204) | Red Claw Crab | |
|---|---|---|
| Temperature | 72–82°F | 75–82°F |
| pH | 6.5–7.6 | 7.5–8.5 |
| Hardness (GH) | 6–7.5 dGH | 15–25 dGH |
| Adult size | 20" | 2.5" |
| Temperament | Peaceful | Semi-aggressive |
| Min tank | 125 gal | 15 gal |
Together, plan on at least 125 gallons.
Compatible alternatives
Instead of Flash Pleco (L204) (to keep Red Claw Crab):
- Giant Gourami — 24", semi-aggressive
- Oscar — 16", aggressive
- Kissing Gourami — 12", semi-aggressive
Instead of Red Claw Crab (to keep Flash Pleco (L204)):
- Thai Micro Pom Pom Crab — 0.8", peaceful
- Thai Micro Crab — 0.4", peaceful
- Pom Pom Crab — 1", semi-aggressive
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Design a tank with Flash Pleco (L204), Red Claw Crab →Everything compatible with Flash Pleco (L204) · …with Red Claw Crab