Mollies and Bristlenose Plecos, side by side
| Molly | Bristlenose pleco | |
|---|---|---|
| Adult size | 3.9 in10 cm | 5.1 in13 cm |
| Smallest tank | 30 gal114 L | 30 gal114 L |
| Keep | 3 or more | One or more |
| Temperature | 73–82 °F23–28 °C | 72–81 °F22–27 °C |
| pH | 7.5–8.5 | 6–7.8 |
| Temperament | Peaceful | Peaceful |
| Swims | In the middle | On the bottom |
Why it does not work
They need different water: Molly likes a pH of 7.5–8.5, bristlenose pleco likes 6–7.8.
Better tank mates for mollies
Better tank mates for bristlenose plecos
Questions and answers
Can mollies and bristlenose plecos live in the same tank?
No, not a good match. They need different water: Molly likes a pH of 7.5–8.5, bristlenose pleco likes 6–7.8.
What temperature suits mollies and bristlenose plecos?
73–81 °F (23–27 °C) suits both.
More pairs
- Mollies and bettas
- Mollies and guppies
- Mollies and neon tetras
- Mollies and fancy goldfish
- Mollies and angelfish
- Bristlenose plecos and bronze corydoras
- Bristlenose plecos and platies
- Bristlenose plecos and tiger barbs
- Bristlenose plecos and dwarf gouramis
- All pairs
Based on each species' adult size, water range and temperament (Seriously Fish, FishBase) and the rules of our stocking calculator. Individual fish differ: this is a guide, not a guarantee.