FIRST, to EBN! Glad you came to us and joined. We will all be anxious to see pix of your baby bully.
Our Princess Gracie, we THINK is allergic to chicken. Unfortunately most all foods have some sort of chicken in them and if they don't they have grains. We finally found Fromm Beef Frittata which is Grain free AND chicken free. It worked wonders for Her Royal Highness . Now whether it works for you or not that is another question because they are all different and it may take trying different foods til you hit on the right one for your bully.
Anyway, there is an introduction area here at EBN where you can tell us more about Sulley and family AND post pix... hint hint!