I have just acquired two 2/4 week old Alyesbury ducklings, and i have conflicting advice on feeding them. I have some duck grower feed on order as the chick crumb and grower i feed my chicks is medicated and have been told they can not eat this. Is it ok to feed them grower then duck grower and then move on to layer pellets for chickens when older? I'm in the UK and flock raiser is not available in my area and can not find a supplier on the net either, do i need this? where can i get some from? Also have read on forums here i need to give the ducklings/ducks niacin? if so what are the levels of dosage? Getting increasingly confused !!!! PLEASE HELP!!!!