Unicorn Tetra
Unicorn Tetra
Unicorn Tetra (Erythrocharax altipinnis) is a rarely seen and unusual tetra from the Rio Orinoco drainage — the tall, high dorsal fin of males creates a unicorn horn-like profile that inspired the evocative common name. A distinctive collector species.
Feeding & Care Tip: Sera Vipan Tropical Flakes and Hikari Micro Pellets make excellent daily staples. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Bloodworms, Hikari Frozen or Freeze-Dried Baby Brine Shrimp, or Hikari Vibra Bites. Feed small amounts 2–3 times daily.
Native to the Orinoco drainage — soft, slightly acidic water. Rarely available in the hobby with collector appeal.
Keep in groups of at least 8. The high dorsal fin of males is most impressive in well-conditioned fish. Peaceful community tetra.
A rare and distinctive tetra — the dramatic high dorsal fin and rarity make it a find for dedicated collectors.
Care & Ideal Parameters
| Difficulty | Easy — Moderate |
| Temperament | Peaceful — schooling community |
| Typical Adult Size | 2.0 inches (5 cm) |
| Min. Group Size | 8 minimum |
| Ideal Temp | 73–82°F (23–28°C) |
| Ideal pH | 6.0–7.5 |
| Ideal GH | 2–10 dGH |
| Ideal KH | 0–5 dKH |
| Staple Food | Sera Vipan Tropical Flakes; Hikari Micro Pellets |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Bloodworms; Hikari Frozen or Freeze-Dried Baby Brine Shrimp; Hikari Vibra Bites |
| Origin | Orinoco drainage |
| Notes | Unicorn = tall horn-like dorsal fin in males. Erythrocharax altipinnis. Rarely available. Collector interest. |
