to EBN!!! I moved your thread to food and nutrition, but you are absolutely fine… it's hard to navigate the forum at first!!! Lol
You can transition your baby to the Four Star line, it is fine for all sizes and ages… I waited until my pups were 6 mos, but I know that other members changed over sooner and it was fine. Beef Frittata is a great food to start with, that is what my Wally is eating right now and he's 10 mos. old. Weight is hard to navigate because bully's vary… from your pics he looks great. If you could post some more pics of different angles we can get a better idea of how he's progressing.