Pufferfish is a food item which can be caught by fishing.
Pufferfish have a chance of being caught when the player fishes. It is in the fish category.
It can be eaten but gives a poison effect, leaving you at half a heart and not letting you re-gain health. It can be used for brewing, and when added to an awkward potion, creates a potion of water breathing.
The interface of the brewing stand with a water breathing potion being brewed.
There are currently no known bugs with pufferfish.