The fish use this to crush their tough-shelled prey including crustaceans and molluscs. The smile of a starry puffer, Arothron stellatus ... Examples include puffers, blowfish, balloonfish, bubblefish ...

Generally, avoiding territorial or aggressive fish will make for a happier, more balanced tank. The puffer is known to be sensitive, and it displays this visually when its regular colors wash out ...

One of the deadliest creatures in the world, the puffer fish produces a poison that can ... is found in the internal organs of the puffer, or blowfish, which is regarded as a delicacy in Japan.