I stick to breeding AKC registered Chihuahuas because due to their policies, I know my Chihuahuas are purebred. In order for a Chihuahua to be AKC registered, both parents must be AKC registered. Whereas CKC will register a dog if you submit pictures of the dog and an application with two witnesses signing to verify the dog is purebred. I find it hard to believe that everyone submitting a CKC application has been completely honest. I also find it hard to believe that you can distinguish a purebred dog by simply looking at pictures. This does not mean that there is anything wrong with a CKC registered dog. They still make wonderful companions. Nor, am I saying CKC Chihuahuas should not be bred. CKC Chihuahuas should be representative of what a true Chihuahua is supposed to be like. You just can't assume that a CKC dog is purebred. As a Chihuahua breeder, I strive to do the best for my puppies and dogs. In doing so, I will never attempt to misrepresent a puppy to be something it is not. That is not fair to the puppy or to the person adopting him.
According to the Chihuahua standard, Chihuahuas weight should be under six pounds. Size does not make them any different from each other. You can have one weighing two pounds and one weighing six pounds. They will both be registered as a Chihuahua with no specification as to their size. Breeders will often use words like teacup, mini, or glass slipper to mislead those looking for a smaller Chihuahua. There simply is no such thing. You can not always judge a puppy's full grown weight just by looking at the parents. Genetics are very complicted. When using a term such as "teacup" that has no definition in relation to Chihuahuas, someone's idea as to what a teacup Chihuahua should weigh will vary from another. When you are searching for a Chihuahua, ask yourself how much would you like your Chihuahua to weigh full grown. There is a very accurate chart (included on this website on my links page) that can estimate a Chihuahua's full grown weight. By asking the breeder how old the puppy is and what it currently weighs you can chart for yourself an estimated adult weight. Often times, the tinier Chihuahuas are predisposed for health issue that you should be aware of. Hypoglycemia is one of them. I am not a trained veterinarian and do not pretend to me. I can only offer advice and my opinion based on my experiences and knowledge I have gained from other more experienced Chihuahua breeders and veterinarians.