Please tell me im worrying for nothing, I bought my chicks from TSC (somerset Pa, They were the only ones with chicks in my area). And they said to pick up this chick starter stuff. It said 20% on it. But when I ran out of feed i went to a local TSC. And all they had was chick starter/grower. It didnt have any percents on it. They did have 24% but I assumed that was too much protein. They are about 10 ish weeks and have been on the chick starter/grower for about nine. I also have 7 week old chicks that have been strictly on that their whole lives.