Hi my pup Bentlee is a lab/pit mix and is about 5 months old. About a week ago he started having watery diarrhea. Other than that he acted normal. Eating and drinking as usual. I took him to the vet and after fecal tests for parasites he recommended Purina RN. Before this he was eating Wellness complete puppy and had seemed to being doing fine. Stool was soft some times but never diarrhea. Since feeding the EN he has had firmer stool but I have also eliminated all his treats and chews in order to narrow down what he might be sensitive too. I was thinking of trying a lid dog food, such as Wellness lid or natural balance. I'm open to all suggestions and help. Thanks.