Overview
The Redtail Catfish (Phractocephalus hemioliopterus) is a advanced freshwater species known for its dark gray, white belly, red tail coloration. Monster fish. Bottom.
Origin & Appearance
Origin: South America.
Colors: Dark Gray, White belly, Red tail.
Body Shape: Deep Fusiform (oval/robust). Typical adult dimensions: 130.0 x 26.0 x 52.0.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 1321 gallons |
| Temperature | 68–79°F |
| pH Range | 6–7.5 |
| Water Hardness (GH) | 5-15 |
| Bioload | very-high |
| Oxygen Demand | high |
| Plant Safe | mostly |
| Aquarium Position | Bottom |
Behavior & Activity
Ambush predator; lies motionless on bottom then explosively lunges at passing prey; lazy between feedings
Speed: 55/100Aggression: 5/10nocturnal
Breeding
Not practical; needs pond-size system
Common Diseases
💊 Hardy💊 tank size is the real issue
Expert Notes
Monster fish; not for home aquariums