No he is not on grain , only on pasture ! I figured the grain wouldn't be good for him and as far as lunging , I tried to do it with the other horse Scooter yesterday and it didn't go so well . I believe I may have been confusing the horse because I was trying to do something I had never done before so I quite after 5 minutes of trying . I didn't want to get myself or the horse hurt because of my lack of experience. I am going to look up a video tonight and see if I can learn how to do it ! I know they have both been trained , their previous owner shows horses, but they haven't been worked with in a while !