Saltwater crocodiles eat cattle, almost anything that moves near the water and ocassionally attack humans.
Tuna are all marine (saltwater) and they are predatory, so yes, tuna eat saltwater fish. They can only eat saltwater fishe because they do not live in freshwater.
tigers
yes
no
Yes they are not bad for you
yes
no they eat salad and broccoli
no they eat salad and broccoli
Drown you, then eat you.
There are all sorts of different fish in the oceans and seas, and there are many different diets associated with them. There is no one food that ALL saltwater fish will eat.
nothing without salt
Anything it can get it's teeth on!