Guinea Bichir

The Guinea Bichir is a powerful West African bichir with a broad head, an elongated armored body, and irregular dark markings. Its separate dorsal finlets give it a striking profile. A small juvenile develops into a substantial predator, making this a long-term choice for aquarists prepared for very large adult housing.

Fish details

• Scientific name: Polypterus ansorgii (commonly sold as Guinea or Guinean Bichir)
• Size offered: Approximately 13–15 cm.
• Adult size: Can approach 76 cm; plan for substantial adult growth.
• Recommended aquarium: A very large adult aquarium or indoor pond. We recommend 300 gallons or more with approximately 244 × 91 cm of floor space; exceptionally large specimens need additional room.
• Temperature: 76–82°F
• pH: 7.0–7.6

Aquarium setup

Prioritize usable floor space and room to turn comfortably. Use sand, substantial smooth shelters, and securely positioned wood or rockwork. Maintain efficient filtration and regular water changes to manage the waste produced by a large carnivore. Provide shaded resting areas and clear routes to the surface.

Bichirs breathe atmospheric air. Keep the surface accessible, leave an air gap beneath the cover, and secure the lid and all cable or pipe openings to prevent escapes.

Diet and feeding

Offer appropriately sized portions of earthworms and varied thawed aquatic foods such as shrimp, mussel, and fish flesh. Sinking carnivore pellets may be used when accepted. Deliver food close to the fish and confirm it feeds; remove uneaten portions promptly.

Compatibility

Its large mouth makes small fish and shrimp potential prey. Consider only sufficiently large, calm companions with compatible water requirements. Avoid bullying species and major size differences among bichirs. Juvenile tankmate combinations must be reassessed as the fish grow.

Ordering information: Sizes are approximate and individual color and markings vary. Contact Las Vegas Exotic Fish to confirm current availability, size, and collection or shipping arrangements.