Can Blue Lobster Crayfish live with Flash Pleco (L204)?
Not recommended
Why
- Blue Lobster Crayfish hunts along the bottom and will catch the bottom-dwelling Flash Pleco (L204), especially at night.
- Only a narrow water hardness overlap — keep both around 6–7.5 dGH.
Side-by-side
| Blue Lobster Crayfish | Flash Pleco (L204) | |
|---|---|---|
| Temperature | 65–82°F | 72–82°F |
| pH | 6.5–8 | 6.5–7.6 |
| Hardness (GH) | 5–20 dGH | 6–7.5 dGH |
| Adult size | 5" | 20" |
| Temperament | Aggressive | Peaceful |
| Min tank | 30 gal | 125 gal |
Together, plan on at least 125 gallons.
Compatible alternatives
Instead of Blue Lobster Crayfish (to keep Flash Pleco (L204)):
- Brazos Dwarf Crayfish — 1.5", peaceful
- Cajun Dwarf Crayfish — 1.5", peaceful
- Dwarf Crayfish (CPO) — 1.75", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
Instead of Flash Pleco (L204) (to keep Blue Lobster Crayfish):
- Giant Gourami — 24", semi-aggressive
- Oscar — 16", aggressive
- Kissing Gourami — 12", semi-aggressive
Design the whole tank, not just the stocking
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Design a tank with Blue Lobster Crayfish, Flash Pleco (L204) →Everything compatible with Blue Lobster Crayfish · …with Flash Pleco (L204)