I have a had my little boxador for about 2 weeks now got him when he was 8 weeks old. When we got him we was told he was on asda own brand puppy wet meat and puppy milk. We put him on butchers puppy wet meat and water but wanted to put him onto dry food so started incorporating that into his food to try and wean him off the meat it's pedigree puppy we have been giving him. We have since been to the vets for his first vaccination and worming tablets and vet has told us to change his dry food to Royal canin pediatric junior so we went and bought that for him. How would I go about changing the pedigree to Royal canin I want to keep him on the wet meat too as he is underweight also. Any help would be much appreciated. Also his poo has been soft since he was vaccinated and wormed is there any concern there?