They usually grow out of it after about 7-9 months, if they're the tinies. But it could be even up to a year old. I had a lot of trouble with my tinies when I first purchased them, but my breeder was VERY helpful and gave me all kinds of suggestions. I mix their puppy food with a little can and shredded beef and that helps them become interested. Plus, I had to give them nutrical 3 times a day. |