Can Black Molly live with Bolivian Ram?
Compatible
Why
No conflicts — these two share similar water needs, temperament, and size, and neither is a threat to the other.
Sweet spot: both do well at 72–79°F and pH 7–7.5 — aim there.
Side-by-side
| Black Molly | Bolivian Ram | |
|---|---|---|
| Temperature | 72–82°F | 72–79°F |
| pH | 7–8.5 | 6–7.5 |
| Hardness (GH) | 12–30 dGH | 6–15 dGH |
| Adult size | 4" | 3.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 30 gal | 30 gal |
Together, plan on at least 30 gallons.
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Design a tank with Black Molly, Bolivian Ram →Everything compatible with Black Molly · …with Bolivian Ram