I am feeding my Oscars when suddenly, one of my cats has his nose up in the air sniffing violently. I assumed he smelled the open jar of Krill so I proceeded to give him one. Let's just say he ended up eating 8 pieces before I finally told him that he is taking from the mouths of the fish. He would have eaten the entire jar if I let him! So, not only will your fish enjoy the jumbo Krill, your cat may beg you for these tasty treats every time you open the container.