Granulosus Catfish (Pterodoras granulosus)

Size: Approximately 2–3 Inches | Wild Caught | South American Import

The Granulosus Catfish (Pterodoras granulosus), also known as the Granulated Raphael Catfish, is an impressive South American armored catfish prized for its prehistoric appearance, heavily armored body, and remarkable growth potential. This unique species is an excellent addition to large freshwater aquariums and monster fish collections.

Native to the river systems of South America, the Granulosus Catfish features a broad head, elongated body, distinctive bony plates along its sides, and powerful pectoral spines. Its rugged appearance and impressive adult size make it particularly desirable among enthusiasts of exotic bottom-dwelling fish.

Unlike smaller Raphael Catfish species, the Granulosus Catfish can reach impressive proportions, making it a fascinating centerpiece for experienced aquarists with large aquarium systems.

Care Information

• Scientific Name: Pterodoras granulosus

• Common Names: Granulosus Catfish, Granulated Raphael Catfish

• Origin: South America

• Current Size: Approximately 2–3"

• Maximum Size: Approximately 28–30 inches

• Temperament: Generally peaceful, but may consume fish small enough to swallow

• Diet: Omnivorous; sinking carnivore pellets, quality prepared foods, shrimp, earthworms, and occasional plant-based foods

• Temperature: 74–82°F

• pH: 6.0–7.5

• Care Level: Intermediate

• Aquarium Requirements: Large aquarium with powerful filtration, adequate bottom space, hiding areas, and excellent water quality

Why Choose a Granulosus Catfish?

The Granulosus Catfish is an exceptional choice for aquarists seeking a unique, large-growing South American catfish. Its heavily armored body, peaceful disposition toward appropriately sized tankmates, and unusual prehistoric appearance make it a standout addition to monster fish aquariums.

As they mature, these impressive catfish develop an increasingly robust body and pronounced armored plates, creating a truly remarkable display fish.

Whether you're building a South American biotope or expanding your exotic catfish collection, the Granulosus Catfish is a fascinating species with plenty of personality.

Available now at RobsAquatics.com!

Please note: Fish sizes are approximate. Individual coloration and markings may vary. This species grows large and requires substantial aquarium space as an adult. Exercise caution when handling due to its strong pectoral spines