You know, they are just so cute it is hard to let them go for too long w/o food but I suspect you are right.
I may do that when they are a little older. They went 4 hours yesterday without eating and the mix was mostly dry crumbles - especially on the top where I thought I could convince them if they pecked at the dry they might like the FF. Nope. I don't get it because I thought chickens were supposed to just LOVE fermented feed.