Price on InquiryKey Details About Redtail Catfish: Size & Growth: They grow extremely quickly, often exceeding feet within a few years in captivity. Diet: As opportunistic carnivores, they eat smaller fish, crustaceans, worms, and fruit in the wild. In captivity, they are not picky and need high-protein diets, but overfeeding is common. Habitat: Native to the Amazon, Orinoco, and Essequibo river basins in South America. They prefer large rivers, streams, and lakes with sandy bottoms and hiding spots. Temperament: Generally solitary, they are nocturnal hunters and territorial. They can be kept with other large fish but will eat anything that fits in their large mouths. Unique Features: They can make grunting noises by rubbing pectoral fins against their bones to communicate. Care Level: Highly demanding. Due to their rapid growth, massive size, and high waste production, they are only suitable for experienced, public aquariums, or massive private indoor ponds.