I thought you might be 1234duck. But let me make it simple. First what are YOU able to get. Second every ADULT duck will do fine on CHICKEN layer pellets. I've been feeding mine chicken layer pellets for years and I sure as heck want them to do great with some as much as 5 hundred dollars a pair. Lots of people feed all kinds of food to ADULT ducks, no problem. You can go hattieguns,exoticduckluvrs.my and lots otherways on ADULT ducks. They all work. Now THAT being said its a war with alot of us on here with DUCKLINGS feed. Here is MY OPINION and the opinions of ALL the people I have ever bought ducks off of. We start our ducklings off with 18-20 % protien feed (which for me is Mazuri starter) When they start to get feathers I start cutting back on the protien to 16% by adding chicken layer pellets BECAUSE when their WING feathers start to emerge they can get ANGELWING. We have found this is caused by(too much protien at wing development stage)AND to a lesser extent nonetheless important, EXCERCISE. AGAIN this is MY and EVERY BREEDER IVE EVER DEALT WITHS opinion. Some people say carbs AND many other things cause it (this is where the rub is ) But when NEW people get into ducks or should I say ducklings I dont want them EVER to have to deal with ANGELWING as over many years of duck raising we have found this to be the problem. Fact,science, theory or whatever proven this is what our experience has taught us.