Care baseline
The 'king of the aquarium' — beautiful but demanding. Requires very warm, soft, acidic water that excludes most community fish.
| Temperature | 82–88°F |
| pH | 5.0–7.0 |
| Adult size | 8 in |
| Minimum group | 5 |
All 90 pair guides, ordered by search value and practical compatibility.
The 'king of the aquarium' — beautiful but demanding. Requires very warm, soft, acidic water that excludes most community fish.
| Temperature | 82–88°F |
| pH | 5.0–7.0 |
| Adult size | 8 in |
| Minimum group | 5 |