This is a slow, gradual process and while you will want to see improvement and tolerance with solid food each day, it is not uncommon for a Chihuahua puppy to have little set backs. Transitioning from a liquid diet to a solid one may have its hiccups along the way.
Never rush things and don't hesitate to put things on pause if the pup needs a few days with no increases of solid food. It is important to find the right balance of offering a bit more, a little at a time but being aware of what a tiny pup can handle.
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