Emperor Tetra
Emperor Tetra (Nematobrycon palmeri) is an attractive aquarium fish from San Juan and Atrato basins, Colombia.
Feeding & Care Tip: Hikari Micro Pellets makes an excellent daily staple. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Tubifex Worms, Hikari Frozen or Freeze-Dried Baby Brine Shrimp to maintain best condition and color. Feed small amounts 2–3 times daily.
Native to San Juan and Atrato basins, Colombia. In the aquarium, a planted setup with the ideal parameters listed below and stable, clean water produces the best coloration and health.
Keep in groups of at least 6. As with most schooling species, larger groups produce more natural behavior and richer color. See Notes for any important care considerations.
A rewarding addition to the planted aquarium, offering attractive coloration and peaceful nature in a well-managed community setup.
Care & Ideal Parameters
| Difficulty | Easy |
| Temperament | Peaceful — Community |
| Typical Adult Size | 2.0 inches (5.0 cm) |
| Min. Group Size | 6 minimum — mixed sexes for best male display behavior |
| Ideal Temp | 73–81°F (23–27°C) |
| Ideal pH | 6.0–7.5 |
| Ideal GH | 3–12 dGH |
| Ideal KH | 1–6 dKH |
| Staple Food | Hikari Micro Pellets |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Tubifex Worms, Hikari Frozen or Freeze-Dried Baby Brine Shrimp |
| Origin | San Juan and Atrato basins, Colombia |
| Notes | Males develop dramatic fin extensions and purple iridescence. Turquoise eyes are distinctive. Less demanding of water chemistry than many South American tetras. |
