The other day I picked up a tin of sardines and mashed one sardine up with Ateles' morning kibble. He loved it (he's usually kind of "meh" about his food but started eating right away this time). I gave him another sardine topper a couple days later. Now I have a full tin minus 2 sardines, and I don't eat them myself. I'm thinking of freezing the rest, but wondering how often I can give sardines, and how many, to an 18 lb mini. I've seen things ranging from 1 sardine a week to 1/2 a tin a week for a small dog.