Hi. I have a silkie hen who hatched her first batch of chicks five days ago. She hatched six chicks. I rehomed my roo, so it's just my hen and her chicks. Today, I discovered that they are all absolutely crawling with lice or mites (I don't know the difference). I'm worried that the chicks are far too small for putting any sort of poison on. I do have some food grade DE. This is my first time owning chickens. Can anyone help with some advice please?