Overview
The Head-and-Tail-Light Tetra (Hemigrammus ocellifer) is a beginner freshwater species known for its silver, gold spots (head/tail) coloration. Bright spots on head and tail. Mid.
Origin & Appearance
Origin: South America.
Colors: Silver, Gold spots (head/tail).
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 5.0 x 0.9 x 1.5.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 11 gallons |
| Temperature | 72–82°F |
| pH Range | 6–7.5 |
| Water Hardness (GH) | 3-12 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Mid-water schooler; reflective spots flash as it turns; steady gentle group movement
Speed: 42/100Aggression: 1/10diurnalSchooling (6+)
Breeding
Moderate; egg scatterer
Common Diseases
💊 Ich
Expert Notes
Bright spots on head and tail