Feeding min & vit licks?

Along with what others said (don't allow them to have at the lick free choice right away, the lick shouldn't replace grain or balancers), if you're going to offer licks then you should allow the horse to choose between mineral blocks and regular salt blocks. It'll help them from getting too much, in the event that they would like a lick of salt if they aren't craving, or needing, certain minerals. My mare isn't crazy about licks but my two yearling boys enjoy going at them for a few minutes after grain. Ideally, they will consume about 3-4oz in a day.