Bolt Catfish (Aguarunichthys torosus)

Bolt Catfish (Aguarunichthys torosus)

The Bolt Catfish is a rare and highly sought-after predatory species known for its torpedo-shaped body, powerful build, and subtle yet striking patterning. Native to South American river systems, this catfish is built for speed and ambush hunting, making it an exciting addition to large predator aquariums. Due to its size, feeding habits, and activity level, the Bolt Catfish is best suited for experienced aquarists.

Diet

Bolt Catfish are carnivorous predators that require a protein-rich diet:

• Sinking carnivore pellets (primary diet)
• Frozen foods (shrimp, fish, krill, bloodworms)
• Live foods (fish, worms — use sparingly)

They are aggressive feeders and should be monitored to prevent overeating.

Tank Requirements

• Minimum Tank Size: 180–250 gallons
• Water Type: Freshwater
• Temperature: 74–82°F
• pH: 6.0–7.5
• Setup: Dim lighting with driftwood or caves for cover; strong filtration and moderate water flow recommended

Provide plenty of swimming space, as this species is active, especially at night.

Size

• Current Sale Size: Typically 5–10 inches

Max Size

• Maximum Adult Size: 12-14 inches

Tank Mates

Tank mates must be selected carefully due to their predatory nature:

• Compatible: Large, aggressive or semi-aggressive fish such as datnoids, large cichlids, arowanas, and other big catfish
• Avoid: Small fish, slow-moving species, or anything that can fit in its mouth

Always ensure tank mates are robust and similar in size.

Temperament

Semi-aggressive and highly predatory. Generally reclusive during the day but becomes active and bold during feeding.