Can German Blue Ram live with Yucatan Molly?
Light caution
Why
- Yucatan Molly is large enough to threaten a small German Blue Ram — usually fine once both are adult, but watch new additions.
- No overlapping pH: German Blue Ram wants 5.5–7 but Yucatan Molly wants 7.5–8.5.
- No overlapping water hardness: German Blue Ram wants 1–8 dGH but Yucatan Molly wants 15–30 dGH.
Side-by-side
| German Blue Ram | Yucatan Molly | |
|---|---|---|
| Temperature | 78–85°F | 72–82°F |
| pH | 5.5–7 | 7.5–8.5 |
| Hardness (GH) | 1–8 dGH | 15–30 dGH |
| Adult size | 2.5" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 20 gal | 40 gal |
Together, plan on at least 40 gallons.
How to make it work
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: GH remineraliser → Aquarium Co-Op
Where to buy
- German Blue Ram: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Yucatan Molly: 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 Yucatan Molly