The only reason i like sushi is because of ENZO. After that i have try so many places and there is no place like ENZO. I found out is that Enzo has TOP OF LINE FISH call sushi/shahsmi organic grade fish i sometimes find this grade at Harris Teeter. I do not know so much about the grades but i do know that there is different types of fish 1. wild caught fish 2. farm raised fish 3. farm raised organic fish. Which number 3 taste the best for me for.