Just picked these two up at post office, fresh from Metzer. may have not bought the best food. It says complete for ducklings and 18% protein. Now I'm thinking they should have something with 20%. Also, how much brewers yeast should I add per cup of food? I have the kind with garlic; is that ok? They are 2 days old.[/IMG] I have 2 1-yr-old Pekin females already, but I didn't get them until they were 4-wks old. So, I'm new to brand-new babies!