My Gabby is 5 months. I am feeding Merrick Puppy Plate. She finally finished the first bag after several months. I went to the store and bought a new bag. Ever since I noticed that her stool has been very soft and wet. Is it possible that Merrick changed their ingredients? She had very soft wet stool for 3 days since opening the bag. I made some rice yesterday which my vet suggested when they have diahreah and gave her that which helped because today her stool is back to normal. Is this something I should be concerned about? I also noticed with todays stool the first one was firm and she did two more at the same time she was taking a poopie and they were soft and wet again.