My ducklings are around a week old now and I would like to start giving them treats. I looked at buying chick grit for them but the bag says they should be two weeks old for it. I also read somewhere that you can start by giving them a clump of grass with dirt still attached and the dirt will act as grit.looking for advice. Ideas opinions. Should I wait another week for grit and treats, start with grass and dirt or go ahead and start grit and treats now?