how long was it between trims?
Most horses feet will start to chip when they are too long. It’s their bodies way of getting rid of the excess hoof.
So long as he stays on a normal(4-6 week) schedule for his barefeet, he shouldn’t have any more cracks or chips. You can also put him on a biotin supplement to help strengthen his feet.
If I go 6 weeks between trims on one of my horses his feet chip up like crazy, so we tend to do 4 weeks, 5 tops. Every horse is different, so I would watch his feet. Once you start to notice some chipping I’d call and make a farrier appointment. And try to keep track of how long it’s been, so you know when to schedule your next appointment.
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