Can neon tetras and mollies live together?
No
Neon tetras and mollies should not share a tank.
Why
- Mollies want a pH of 7.5 or higher, but neon tetras want 7.0 or lower. No pH suits both.
What each one needs
| Neon tetra | Molly | Both | |
|---|---|---|---|
| Temperature | 70–81°F (21–27°C) | 72–82°F (22–28°C) | 72–81°F (22–27°C) |
| pH | 6.0–7.0 | 7.5–8.5 | No overlap |
| Minimum tank | 10 gal (38 L) | 20 gal (76 L) | 20 gal (76 L) |
| Keep at least | 6 | 3 | |
| Adult size | 1.5 in (3.8 cm) | 4 in (10.2 cm) |