[anonymous]

How long does he go without eating? I would try to wait him out. Pick up the food if he doesn’t eat it after 10 to 20 minutes, put it in the fridg and offer at the next meal time.
Is he underweight? Is there a reason he can’t go a day or so without eating? As long as he is drinking water, I might call the vet if he goes 72 hours without eating.

Unless he appears to be in distress, in pain, uncomfortable, vomiting……call the vet sooner.