Overview
The Black Neon Tetra (Hyphessobrycon herbertaxelrodi) is a beginner freshwater species known for its black, white, iridescent green coloration. Black and white horizontal stripe. Mid.
Origin & Appearance
Origin: Brazil.
Colors: Black, White, Iridescent green.
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 4.0 x 0.7 x 1.2.
Sexual Dimorphism: Subtle; females rounder.
Tank & Water Requirements
| Min Tank Size | 11 gallons |
| Temperature | 73–81°F |
| pH Range | 5.5–7.5 |
| Water Hardness (GH) | 2-12 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Loose mid-water schooling; calm steady swimmer; less erratic than other tetras; drifts in gentle current
Speed: 42/100Aggression: 1/10diurnalSchooling (6+)
Breeding
Moderate; egg scatterer
Common Diseases
💊 Ich💊 general hardiness good
Expert Notes
Black and white horizontal stripe