Ok i just made a food change for London.I am going from Purina Puppy Chow to Taste of the Wild Pacific Stream. I let her try a lil bit by its self and she ate it up.Should i blend it with the puppy chow for a bit or let her eat it by its self? Also we plan to make this change with our Beagle also.What should i be looking for that might tell me that this may not be for her other than loose stools.