Cute horse! Try giving him a high calorie diet. Also there is this really cheap supplement that we buy called biotin. Most good feeds have it in there but we just mix it in there anyway. I suggest you get some it is really inexpensive. It helps with coat and hoofs a ton. I rescued my last mare and she had about five inch cracks on her hooves and a really dul coat. Now she has gained 200 pounds and has no more cracks! Also for barefoot horses I use venice turpintine. It is really messy but works miricles. I use sole pack oil after the hoof is stronger alternationg between it and a really good conditioner. Hope you liked my rant. Just though i'd help.
he needs all the care he can get if he is barefoot!