Hi everyone! Basically my chicks are currently eating the Ace Hi 22% Chick Starter Mash. The guy at the feed store gave me a bag of the Star Milling Co. All Purpose vegeterian Mash feed to switch to once I run out of the Ace Hi starter. Is this feed good? Do I have to switch gradually? How long should I feed them this? It say's all purpose, does that mean their entire life? Thanks for any help!