My chicks are 11 days old, I'd like to pickup some meal worms for them and in my reading here seen that they need grit. Where can I buy grit, how do I introduce it to them and make sure they eat it along with the mealworms? I assume chick starter requires no grit? I feed them the non medicated starter from the hatchery, does chick starter already contain grit? I have 14 RIR hens, all bought and picked up from moyers chicks in quakertown, pa. All were vaccinated and are doing great! It's amazing how quickly these birds have grown in just 11 days!