Choosing Diamond Tetra Tank Mates
Good Diamond Tetra tank mates share the same temperature and pH window, will not be eaten by (or eat) the Diamond Tetra, 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
The Diamond Tetra is a popular freshwater fish known for its vibrant colors and peaceful nature. It is well-suited for community tanks and can thrive in a variety of water conditions. With a moderate activity level and a preference for schools, this species is a great addition to any beginner or intermediate aquarist's tank.
| Temperature | 75–82°F |
| pH | 5.5–7.0 |
| Adult size | 2.4 in |
| Minimum group | 6 |