Origin
Native to the Amazon and Paraná river basins in South America. Typically found in deep channels and flooded plains.

Visual & Behavioral Appeal
Long, torpedo-shaped body with high-contrast black bands and silver-gray base. Distinctive flattened “shovel” snout and long barbels. Moves with power and precision, especially during feeding.

Purpose
Used in predator tanks and biotope displays for motion, presence, and as a centerpiece species. Reinforces scale and hierarchy in monster setups.

Importance
An apex display species that educates aquarists on long-term species responsibility. Captures the raw energy of the Amazon and challenges aquascapers to think big.

Included Resources
Needs a tank of 500+ gallons with robust current, sandy or fine substrate, powerful filtration, and stable heat. Driftwood or pipes can help define hiding zones.

Best Use Cases
Public aquariums, Amazon predator tanks, or ultra-large home displays with similar-sized tankmates. Not suitable for planted or peaceful community tanks.

Conservation Context
Still wild-caught in regions but increasingly aquacultured. Introduction into non-native ecosystems has caused ecological concern, especially in Southeast Asia.

Ideal Aquatic Species
• Large cichlids (peacock bass, oscars)
• Redtail catfish
• Giant gouramis
• Bichirs or arowanas (if space allows)
• Never with small or passive fish

Region (A)
• Latitude: -4.2515° S
• Longitude: -55.9928° W
(Tapajós River, Brazil)

Region (B)
• Latitude: -25.2637° S
• Longitude: -57.5759° W
(Paraguay River — Upper Paraná Basin)