In your opinion, what is the best age to start potty training? I’m guessing you’d be surprised to learn that it’s right now! As soon as the puppies are up on all 4’s and all of a sudden they’re exploring their environment and their siblings. Usually 3 weeks old-ish. I’ll post more tomorrow about how I do it from start to finish, and how my babies leave knowing wonderful clean potty habits. | Mama Bear Chihuahuas