What does the tag say? usually all flock/flock raisers etc have enough to maintain ducks with out additions. I don't add things to the water, as for the shavings, well possible ducks do truffle through so can appear to be that said if your concerned, cover with paper towels for a few days. I use...
wow, you sure have been left holding the bag haven't you?
Okay, the water have you shown each one to drink? you will likely have too. They don't always find on their own just like with new chicks you show, mama would.
Out of those two, yes starter would be better.. layer has excessive...