I only have 10 chicken so it takes a while to go thru a 50lb bag of feed. My first bag of grower/starter was DuMor from TSC and for the next purchase I stopped at a local feed store and grabbed a bag of FRN brand grower feed, I didn't realize until I got home that it was the medicated feed. I noticed it is darker colored and smells a little different but the chooks seen to love it! Is is fine if I switch back and forth like this? P.S. The feed from the feed store was also $11 vs $14+ from TSC.