Can Marbled Crayfish live with Blue Phantom Pleco?
Not recommended
Why
- Marbled Crayfish hunts along the bottom and will catch the bottom-dwelling Blue Phantom Pleco, especially at night.
- Only a narrow water hardness overlap — keep both around 5.5–7 dGH.
Side-by-side
| Marbled Crayfish | Blue Phantom Pleco | |
|---|---|---|
| Temperature | 64–77°F | 75–82°F |
| pH | 6.5–8 | 6.5–7.6 |
| Hardness (GH) | 5–20 dGH | 5.5–7 dGH |
| Adult size | 5" | 7" |
| Temperament | Aggressive | Peaceful |
| Min tank | 30 gal | 55 gal |
Together, plan on at least 55 gallons.
Compatible alternatives
Instead of Marbled Crayfish (to keep Blue Phantom Pleco):
- Brazos Dwarf Crayfish — 1.5", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Cajun Dwarf Crayfish — 1.5", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Dwarf Crayfish (CPO) — 1.75", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Instead of Blue Phantom Pleco (to keep Marbled Crayfish):
- Altum Angelfish — 7", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Angelfish — 6", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Blue Gourami — 6", semi-aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Where to buy
- Marbled Crayfish: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Blue Phantom Pleco: buy at Flip Aquatics · Flip Aquatics 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.
Build a full tank around this stocking →Everything compatible with Marbled Crayfish · …with Blue Phantom Pleco