One has to look closely at this elegant fish to see that its tiny but needle-sharp teeth are indeed a shade of dull pinkish red. This species does not have teeth as massive as most other triggerfishes, since it feeds primarily on plankton, often assembling in large schools to feast on it. It also eats sponges. Found from the Red Sea far into the Pacific, for many years it has been popular in aquariums, where it does very well.
No relation to sturgeons, this huge relative of the little “talking catfishes” (popular with aquarists) possesses similar looking bony scutes along its side, giving it a prehistoric appearance. One of its other aquarium shop names is in fact “Prehistoric catfish” and another is “Ripsaw”. Though exceeding three feet in length, they feed almost entirely on invertebrates and detritus, as one might deduce from their small mouths.