Kerri Tetra
Kerri Tetra
Kerri Tetra (Inpaichthys kerri) is one of the most beautifully colored tetras available — males develop a stunning violet to purple-blue body coloration with a vivid iridescent stripe, while females are more modestly colored in warm brown tones. Named for F. Kerr who collected the original specimens from the upper Aripuanã River in Mato Grosso, Brazil. Described in 1977 by Géry and Junk.
Feeding & Care Tip: Hikari Micro Pellets (crushed or soaked) and Sera Vipan Baby make excellent daily staples. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Baby Brine Shrimp and Hikari Frozen Daphnia. Feed small amounts 2–3 times daily in a calm environment.
Native to the upper Aripuanã River drainage in Mato Grosso, Brazil — a tributary of the Madeira.
Keep in groups of at least 8 with both sexes — the male's violet body is most vivid when competing for female attention. Soft, slightly acidic water produces the deepest violet coloration.
The Kerri Tetra's violet male coloration is among the most vivid purple-blues available in any tetra — genuinely stunning in a planted aquarium.
Care & Ideal Parameters
| Difficulty | Easy |
| 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 | 6.0–7.0 |
| Ideal GH | 2–10 dGH |
| Ideal KH | 0–5 dKH |
| Staple Food | Hikari Micro Pellets (crushed/soaked); Sera Vipan Baby |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Baby Brine Shrimp; Hikari Frozen Daphnia |
| Origin | Upper Aripuanã River drainage, Mato Grosso, Brazil |
| Notes | Named for collector F. Kerr. Described 1977 by Géry and Junk. Males vivid violet-purple. Upper Aripuanã, Mato Grosso. |
