Spotted Raphael Catfish (Agamyxis pectinifrons)

Raphael catfish are doradid "talking catfish," able to produce an audible croak by grinding a modified pectoral spine against its socket — loud enough to genuinely startle anyone who's never heard a fish make noise before. That same spine locks rigid the instant the fish is grabbed, a defense that makes it a notoriously difficult mouthful for anything that tries to swallow it.

Care level: Easy · Temperament: Peaceful · Max size: ~7" · Min tank: 40 gal · Diet: Omnivore, sinking pellets/wafers