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This is the way I've always done it:
HATCH DAY TO 8 WEEKS
Feed-18-20% (protein) Starter chick feed.
Water-Avilable at all times with unpasteurized, organic apple cider vinegar added to it. (One teaspoon per quart.)
Treats-Chicks this age don't usually eat anything but their feed. However, you can try giving them scrambled eggs, (no salt) oatmeal and fresh herbs.
Calcium-None.
8 WEEKS TO 18 WEEKS
Feed-18% (protein) Grower feed. Note: If you fed an 18% starter feed then the chicks do not need to be switched to the grower. However, if they had a 20% starter feed, they do need to be switched to the 18% grower feed.
Water-Avilable at all times with unpasteurized, organic apple cider vinegar added to it. (One teaspoon per quart.)
Treats-Add new things such as grass, melon, corn, peas, rice, bread, etc.
Calcium-None.
18 WEEKS AND UP
Feed-16% (protein) layer feed.
Water-Avilable at all times with unpasteurized, organic apple cider vinegar added to it. (One teaspoon per quart.) You can also put garlic in as well.
Treats-Anything healthy and good for them. (Remember, treats should only take up 10% of the chickens' daily diet.)
Calcium-Oyster shells or crushed, rinsed eggshells available at all times in a separate dish from the layer feed.