Overview
The Purple Emperor Tetra (Inpaichthys kerri) is a intermediate freshwater species known for its purple-blue (male), silver (female) coloration. Males are purple-blue. Mid.
Origin & Appearance
Origin: Brazil.
Colors: Purple-Blue (male), Silver (female).
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 5.0 x 0.9 x 1.5.
Sexual Dimorphism: Strong; males are purple-blue, females brownish.
Tank & Water Requirements
| Min Tank Size | 20 gallons |
| Temperature | 75–81°F |
| pH Range | 5.5–7 |
| Water Hardness (GH) | 3-10 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Mid-water cruiser; males display vivid purple with lateral fin spreading; smooth gliding motion
Speed: 42/100Aggression: 2/10diurnalSchooling (6+)
Breeding
Moderate; egg scatterer
Common Diseases
💊 Ich
Expert Notes
Males are purple-blue