I currently am feeding my 1 year old Berner, Apollo, Royal Canin Venison and Potato hypoallergenic dog food. He has something called coronavirus which causes him to have high bacteria levels in his stomach and gives him issues. He also takes 1/8 tsp of Tylen powder with every meal. He had a lot of stomach issues as a puppy but the combination of the food and medicine have gotten it under control. But the food is very expensive and I'm wanting to try and transition him to another type of food that may be a little cheaper. Does anybody have any suggestions, given all of Apollo's stomach issues? Any suggestions would be greatly appreciated. Thanks!