Care baseline
Brilliant red-and-blue schooling fish from the Rio Negro. Prefers soft, acidic, warm water — a natural companion for discus.
| Temperature | 73–82°F |
| pH | 4.5–7.0 |
| Adult size | 1.5 in |
| Minimum group | 6 |
All 90 pair guides, ordered by search value and practical compatibility.
Brilliant red-and-blue schooling fish from the Rio Negro. Prefers soft, acidic, warm water — a natural companion for discus.
| Temperature | 73–82°F |
| pH | 4.5–7.0 |
| Adult size | 1.5 in |
| Minimum group | 6 |