Ruby Tetra
Ruby Tetra (Axelrodia riesei) is an attractive aquarium fish from Meta River system, Colombia.
Feeding & Care Tip: Sera Micron Nature (juveniles); Sera Vipan Baby (adults) makes an excellent daily staple. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Baby Brine Shrimp to maintain best condition and color. Feed small amounts 2–3 times daily.
Native to Meta River system, 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 10. 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 — Moderate |
| Temperament | Peaceful — Nano Community |
| Typical Adult Size | 0.75 inches (1.9 cm) |
| Min. Group Size | 10 minimum |
| Ideal Temp | 72–82°F (22–28°C) |
| Ideal pH | 6.0–7.0 |
| Ideal GH | 1–8 dGH |
| Ideal KH | 0–4 dKH |
| Staple Food | Sera Micron Nature (juveniles); Sera Vipan Baby (adults) |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Baby Brine Shrimp |
| Origin | Meta River system, Colombia |
| Notes | Tiny brilliant ruby-red nano tetra. Nano foods required — Sera Micron Nature for juveniles, Sera Vipan Baby for adults. Keep with similarly tiny peaceful species only. |
