At what age do you stop feeding puppies 3 times a day and cut back to 2 times a day.
Thanks

I usually let the puppy tell me......usually when he quits eating his noon meal.

Often a pup can go off food a bit when teething (so 3 smaller meals is easier) so I usually wean off noon meal when they are done teething.

At 5-6 months for me.

I do either or both, depends on the puppy. I tell the puppy buyers the same. Sometimes a small lunch is good for a 4 month puppy and larger breakfast and dinner.