Diodontidae Porcupine Fish

Their skin is dotted with spines, which stick out in response to danger, and the effect is enhanced by the fish puffing out its body to impress its foe. Porcupine fish are considered easy to acclimatize, but they do not tolerate members of their own species. They feed on mussels and small shellfish - complete with shell -which they can munch thanks to their strong teeth.

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