I disagree with other posters about setting a feeding time. I do not see the point in setting feeding times if your dog is not overeating. My vet said that it is best if a dog can free feed which not ever dog is capable of doing as many will scarf down anything put in front of them.
My Lilly sounds a lot like Bianca. Some days she will eat all of her food in her bowl and I'll fill it up again and other days she does not really touch it. I used to worry about it but now I'm just used to the fact that she will eat when she is hungry. Some dogs eat to live and others live to eat. Clearly Lilly (and probably Bianca) are the "eat to live" type. If Bianca is not underweight and she has plenty of energy I wouldn't worry too much about it!
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