Red Eye Tetra
Red Eye Tetra (Arnoldichthys spilopterus) is an attractive aquarium fish from Niger River delta and coastal West Africa.
Feeding & Care Tip: Hikari Micro Pellets makes an excellent daily staple. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Bloodworms, Hikari Frozen or Freeze-Dried Baby Brine Shrimp to maintain best condition and color. Feed small amounts 2–3 times daily.
Native to Niger River delta and coastal West Africa. 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 | 2.75 inches (7.0 cm) |
| Min. Group Size | 6 minimum — groups of 8+ for best schooling |
| Ideal Temp | 73–82°F (23–28°C) |
| Ideal pH | 6.0–7.5 |
| Ideal GH | 3–12 dGH |
| Ideal KH | 1–8 dKH |
| Staple Food | Hikari Micro Pellets |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Bloodworms, Hikari Frozen or Freeze-Dried Baby Brine Shrimp |
| Origin | Niger River delta and coastal West Africa |
| Notes | AFRICAN tetra (Alestidae family) — not Amazonian. Vivid red upper iris is the defining feature. Needs good oxygenation. Active — needs open swimming space. |
