Crystal Tetra
Crystal Tetra (Protocheirodon pi) is an attractive aquarium fish from Rio Negro tributaries, Brazil.
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 Rio Negro tributaries, Brazil. 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 8. 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 | Moderate — Advanced |
| Temperament | Peaceful — Specialist |
| Typical Adult Size | 1.5 inches (3.8 cm) |
| Min. Group Size | 8 minimum |
| Ideal Temp | 75–84°F (24–29°C) |
| Ideal pH | 6.0–6.8 |
| Ideal GH | 1–5 dGH |
| Ideal KH | 0–3 dKH |
| Staple Food | Sera Micron Nature (juveniles); Sera Vipan Baby (adults) |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Baby Brine Shrimp |
| Origin | Rio Negro tributaries, Brazil |
| Notes | Extremely rare in the hobby. Translucent body with internal organs visible. Requires very soft blackwater — ideal pH 6.0–6.8. Specialist fish for experienced aquarists. |
