I need more info. to understand why he isn't eating well...How old is your dog? If it is a puppy then it is possible that it is just a phase. If you switched foods recently it is possible that he doesn't like it.Has he always ate Eukanuba?
Why was Eukanuba vet. advised? Does he have allergies or some health problems? Or just a recommendation?
Before switching to another food you should try to see what is making Finney not want to eat. It may not be because of the food.It could also be a sign of health problems.I don't mean to scare you but like i said i need more info. It could be a number of things as to why he isn't eating well.
Has your home enviroment changed any lately?
dogs can be stressed by changes and then won't eat well, among other things.

Angie