Do puffer fish live in saltwater?
The majority of them are marine-water fishes (read: require a salt water aquarium). However, she said that there are 40 types of puffer fish found in brackish waters (a mix of salt and fresh water), and 29 species are found in freshwater. Pufferfish can vary from two inches to up to several feet in length.
Can I touch a puffer fish?
The pufferfish’s skin is covered in spines and spikes, which are exceedingly hazardous. Carry a toxin called tetrodotoxin (TTX), which is deadly to other fish and humans. You should avoid touching a pufferfish, especially if it is “puffed out.” Your hands could be damaged and you could die.
Are all puffer fish poisonous?
Almost all puffer fish contain tetrodotoxin, a substance that makes them foul tasting and often lethal. To humans, tetrodotoxin is deadly, up to 1,200 times more poisonous than cyanide. There is enough toxin in one puffer fish to kill 30 adult humans, and there is no known antidote.