Overview
The Payara / Vampire Tetra (Hydrolycus scomberoides) is a advanced freshwater species known for its silver coloration. Massive fangs. Mid.
Origin & Appearance
Origin: South America.
Colors: Silver.
Body Shape: Sagittiform (arrow/pike). Typical adult dimensions: 117.0 x 17.6 x 23.4.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 528 gallons |
| Temperature | 75–82°F |
| pH Range | 6.5–7.5 |
| Water Hardness (GH) | 5-15 |
| Bioload | very-high |
| Oxygen Demand | high |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Explosive open-water predator; cruises mid-water then strikes with enormous fangs; powerful burst swimmer
Speed: 70/100Aggression: 8/10diurnal
Breeding
Moderate; egg layer
Common Diseases
💊 Very sensitive💊 poor survival in captivity
Expert Notes
Massive fangs; river predator; rarely survives in aquarium