Can German Blue Ram live with Dwarf Crayfish (CPO)?
Caution — with care
Why
- Dwarf Crayfish (CPO) hunts along the bottom and will catch the bottom-dwelling German Blue Ram, especially at night.
- Only a narrow temperature overlap — keep both around 78–79°F.
- Only a narrow pH overlap — keep both around 7.
- Only a narrow water hardness overlap — keep both around 6–8 dGH.
Sweet spot: both do well at 78–79°F and pH 7–7 — aim there.
Side-by-side
| German Blue Ram | Dwarf Crayfish (CPO) | |
|---|---|---|
| Temperature | 78–85°F | 65–79°F |
| pH | 5.5–7 | 7–8 |
| Hardness (GH) | 1–8 dGH | 6–15 dGH |
| Adult size | 2.5" | 1.75" |
| Temperament | Peaceful | Peaceful |
| Min tank | 20 gal | 10 gal |
Together, plan on at least 20 gallons.
How to make it work
- Only combine with fast, mid/top-water fish and give the tankmates plenty of escape routes.
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: GH remineraliser → Aquarium Co-Op An adjustable heater → Chewy
Where to buy
- German Blue Ram: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Dwarf Crayfish (CPO): 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 German Blue Ram · …with Dwarf Crayfish (CPO)