That is so EXCITING!!!! I'm glad you got more than one.
Put down a puppy pad or paper towels and sprinkle a little food on that until they learn what the food is. Although, they may have been eating that at the feed store.
My two silkies that are 4 wks old now (black and buff) like to lay in the pellets or on the tube sock I have folded in half over itself rather than roost. Not sure if they will continue that when older.
Remember, I had to crush the crumbles smaller for them and just stopped this week. When they were itty bitty they would just peck at the crumbles until I started crushing it to make it smaller (almost powder like) then they would just attack it and gobble it down.
I started the meal worms and grit at 3 wks. They LOVE those and come running to my hand now. My buff is a little skiddish when held - but will relax if I hold her/him with the black silkie and black cochin.
Mine didn't like the brooder as warm as my standard chicks did. They liked it 85-80 to start rather then 95-90.
You enjoy and show us some pics when you get a chance.