Choosing Black Ruby Barb Tank Mates
Good Black Ruby Barb tank mates share the same temperature and pH window, will not be eaten by (or eat) the Black Ruby Barb, 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 Black Ruby Barb is a vibrant, active species suitable for beginners. It requires a spacious tank and a school of its own kind to thrive. Its striking colors and lively nature make it a popular choice.
| Temperature | 68–81°F |
| pH | 5.5–7.5 |
| Adult size | 2.2 in |
| Minimum group | 6 |