Choosing Guppy Tank Mates
Good Guppy tank mates share the same temperature and pH window, will not be eaten by (or eat) the Guppy, and do not compete for the same swimming zone or feeding time. Each pair guide below scores those factors from 0 to 100 and gives the minimum tank size for keeping both species together.
Start with the highest-scoring pairs; anything under 45 is listed so you know what to avoid, not as a recommendation.
Care baseline
Hardy and colourful livebearers. Males' long flowing tails make them targets for fin-nipping species. Very prolific breeders.
| Temperature | 72–82°F |
| pH | 6.8–8.5 |
| Adult size | 2.5 in |
| Minimum group | 3 |