Choosing Red Eye Tetra Tank Mates
Good Red Eye Tetra tank mates share the same temperature and pH window, will not be eaten by (or eat) the Red Eye 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 Red Eye Tetra is a popular freshwater fish known for its vibrant red eyes and sleek, silver body. They are generally peaceful and can be kept in a community tank with other non-aggressive species. Their moderate activity level makes them suitable for a variety of aquarium setups. With proper care, they can live up to 5 years.
| Temperature | 72–79°F |
| pH | 6.0–8.0 |
| Adult size | 2.8 in |
| Minimum group | 6 |