Royal Canin is a perfectly decent food, but just a people don't like a particular food, dogs can ot like a certain food. You can see if he prefers a different food, and if he does, that's fine.
Whatever you do, don't add lots of extras or tasty things to his food to try and convince him to eat it. All that does is encourage picky eating.
Whatever you do, don't add lots of extras or tasty things to his food to try and convince him to eat it. All that does is encourage picky eating.