Can goldfish live with mollies?
Verdict
No
No. Goldfish and mollies should not share a tank. Goldfish are coldwater animals (60–74°F); mollies need 72–82°F. They overlap only at 72–74°F, the edge of both ranges.
What to watch
- Deal breakerGoldfish are coldwater animals (60–74°F); mollies need 72–82°F. They overlap only at 72–74°F, the edge of both ranges.
What works
- pH 7.5–8 suits both.
Water side by side
Size to scale
Care at a glance
| Goldfish | Molly | |
|---|---|---|
| Temperature | 60–74 °F | 72–82 °F |
| pH | 7–8 | 7.5–8.5 |
| Adult size | 10.0 in | 4.0 in |
| Minimum tank | 40 gal | 20 gal |
| Temperament | Peaceful | Peaceful |
| Swims at | All levels | Top |
| Group | Alone or in pairs | Groups of 3+ |
| Diet | Omnivore | Omnivore |
Better tank mates for goldfish
Better tank mates for mollies
Questions
Can goldfish live with mollies?
No. Goldfish and mollies should not share a tank. Goldfish are coldwater animals (60–74°F); mollies need 72–82°F. They overlap only at 72–74°F, the edge of both ranges.
What temperature suits both goldfish and mollies?
72–74 °F. Goldfish need 60–74 °F, mollies need 72–82 °F.
What size tank do goldfish and mollies need together?
At least 40 gal, set by the goldfish. Add space for each extra fish.