I fed them crumbles since they were babies... then switched them to pellets when they started laying. I am switching back to crumbles after we went through the first bag of pellets because I heard they eat less pellets (since they are full quicker) and then can start pecking each other. I already had an issue with pecking each other so I am switching back to crumbles, and I also got some scratch. I have used purina, dumor, and another one i can't remember the name of.