I've been feeding my girls prey model for 1-1/2 years now. For the most part things are great - my two larger girls eat everything and anything I put out for them... they are SO easy.

They chomp those bones up in a matter of a minute or two.

Little piggies.
Then there is my smallest who is about 4 lbs. She will snarf food one day and the next day I may feed the same thing and she will not eat. Period. She won't eat fish and doesn't eat pork most of the time. Sometimes she will turn her nose up at something that she has always eaten before.
When she doesn't eat a meal, I let her wait till the next meal time. There are times when she will sit by her uneaten bowl of food for a very long time, staring at me.
Because of her size, I get worried if she won't eat two meals in a row. Not too long ago she refused to eat for a couple of days so I used emergency measures... baby food meat. That time I tried everything I could think of first - canned dog food (meat only), cooked egg.... I think there were about 10 different things I tried.
I don't know why she doesn't eat at times or if I should even be concerned about it. Or is it a sign of something wrong????
Anyone have a dog that does this or any words of wisdom?