As I've been searching searching searching for info about cats & raw fish, it's crazy to me how many people feed their cats a fish based diet. I think I'm going to try the sardines packed in water as a treat.
http://healthypets.mercola.com/sites/healthypets/archive/2012/01/03/fish-as-a-protein-source.aspx
http://www.littlebigcat.com/nutrition/why-fish-is-dangerous-for-cats
https://catnutrition.wordpress.com/2007/09/22/eight-strikes-against-fishy-feeding-for-cats
http://catsndogsnaturally.com/?p=1217
http://feline-nutrition.org/answers/answers-kitty-that-only-wants-fish
http://healthypets.mercola.com/sites/healthypets/archive/2012/01/03/fish-as-a-protein-source.aspx
http://www.littlebigcat.com/nutrition/why-fish-is-dangerous-for-cats
https://catnutrition.wordpress.com/2007/09/22/eight-strikes-against-fishy-feeding-for-cats
http://catsndogsnaturally.com/?p=1217
http://feline-nutrition.org/answers/answers-kitty-that-only-wants-fish