Puffers & Boxfish
Members of the family Tetraodontidae, Boxfish, Blowfish or Pufferfish and their cousins Cowfishes and Porcupinefishes can be very personable and quirky pets, for the prepared.
They are not thought of as an ordinary aquarium tank mate, but are quickly gaining popularity. They do pose a hazard in the community tank however. They are capable of releasing a very powerful toxin which can kill other fish and in some cases, the boxfish itself. They generally only use it when threatened or dying, but can become disturbed easily with aggressive tank mates or overcrowded aquarium. Generally they are reef safe, though they will pick at invertebrates if not fed well enough.
Many people think puffed up Pufferfish, like in the picture, are cute, but an owner should never subject their pet to this as they are often unable to expel the air should they be out of the water. To prevent this, never remove a puffer from the water.
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