Hi - our chicks are 7 days old, incubator hatched. They faired very well today on their field trip to VBS - the kids loved them, no touching. I built a wooden crate for them yesterday and they looked awesome in there - much more authentic than the Rubbermaid We gave them a couple of crickets today - what a hoot. I'm hesitant to give more til I know - do they need "grit" for crickets? We will probably keep them another week -should I just go get some to put in with them? What kind of sand is "untreated" - is playsand okay? One has just started trying out the branch I put in for them to roost. They're so fun to watch and grow SO fast. Thanks.