If you want to eat the piranha you caught, there are a few good recipes for this bony and tart fish
. You first want to scale the piranha with a knife or brush, and then cut the meat from its side. Remove the innards, rinse it, and then soak the fish in vinegar and water. You can then either use it as an ingredient in a soup or stew, or pan fry it with some lemon, salt, and soy sauce.