Hello there and welcome to BYC!
Some chicks just develop slower than others, especially runts, they are quite slow to catch up. And with nature, not all chicks make it to adulthood.
All this being said, just keep an eye on the little one. If the crumbles are too large, he may not be eating enough to grow. You may need to crush the feed for the next week til he catches up.
Good luck with your flock and welcome to ours!
Some chicks just develop slower than others, especially runts, they are quite slow to catch up. And with nature, not all chicks make it to adulthood.
All this being said, just keep an eye on the little one. If the crumbles are too large, he may not be eating enough to grow. You may need to crush the feed for the next week til he catches up.
Good luck with your flock and welcome to ours!