Will they be ok without grit? I bought some white sand, very fine, so they can dust bathe. This weekend it will be nice enough for them to spend some time outside and have something other than shavings to bathe in. They loved the oatmeal, just a tablespoon for 4 chicks. I sprinkled some of the sand on their food (regular chick starter) but they are running wild trying to find more of the oatmeal. I think it would be great for my older son to have the feeling of them eating out of his hand when they are this small. Should I worry they'll get sick?