Captive bred puffers are mostly non toxic, wild caught ones are very poisonous indeed.
In marine puffers, the toxin is in the internal organs, in freshwater puffers, it's in the skin.
The toxin is processed by the puffer's metabolism from chemicals found in certain species of algae found in their biotopes which they eat.
In marine puffers, the toxin is in the internal organs, in freshwater puffers, it's in the skin.
The toxin is processed by the puffer's metabolism from chemicals found in certain species of algae found in their biotopes which they eat.