Our kitten Sulley is 14 weeks old and has just recently been allowed full time access to our resident 1 year old cat Sebastian and the run of the whole house. They eat on opposite sides of the kitchen in their own spots. Sebastian only likes fancy feast grilled poultry style wet food and we have been feeding Sulley Purina pro plan kitten wet food. I put their respective foods in their own spots and Sulley will inevitably leave his food to go eat Sebastian’s as soon as he walks away from his. Sebastian will occasionally eat Sulleys kitten food too. Is there a major difference between kitten wet food and adult? I know the pro plan is a better quality food than the fancy feast, Sebastian doesn’t seem to like the pro plan adult food. I’m still going to offer Sulley the kitten food but at what age could be be given the same as Sebastian since he seems to prefer it