[QUOTE=cowboymom;6642471]
Gads, I guess diversity is a good thing in people but not in dogs.[/QUOTE]
There is a breed standard for a reason. The merle gene in chihuahuas is associated with blindness, deafness, and sterility. “Diversity” should not come at the cost of putting the potential offspring at risk for medical complications. http://www.chihuahuaclubofamerica.com/breed-info/chihuahuau-breed-standard/merle-guidelines
A good breeder:
(a) seeks to create a dog that mentally and physically meets the breed standards (b) is better than both the parents
© has two parents who were fully tested for hips, eyes, heart, or whatever is important for the breed
(d) proves his breeding stock in performance, conformation, or out in the field
(e) has a goal of bettering the breed as a whole
(f) stays on top of health problems in the breed
(g) provides quality nutrition, health care, socialization, etc.
Sometimes a responsible breeder unexpectedly produces a color or size that is not recognized in the breed standard. A good breeder finds out how to prevent that from happening in the future, spays and neuters the affected puppy, and places it in a loving forever home.
Someone who is breeding for color above structure, temperament, and ability is not a quality breeder.
If this is a quality breeder who happened to have an unplanned merle puppy then I don’t think that is reprehensible and I am glad the OP got a unique and cute dog.
OP sorry for the derailing. You have two very cute dogs and I hope that your new female works out and is a good match for your current dog and lifestyle. Only you know whether or not the breeder you are working with is reputable and if you feel confident that they are ethical and aiming to better the breed then I don’t think the opinions of anyone else should stop you from loving and enjoying your two dogs.