There isn't really any such thing as teacup in any breed and it is advisable to stay away from anyone using the term. Indicates they either have poor ethics (either by using the term when they know it doesn't exist, using the term to mislead other's, etc.) or they don't really have enough knowledge to be breeding because they do believe the term exists and both have an effect on a breeding program, the pups produced, and the people that love them. It is often a health problem contributing to such a tiny dog like a liver shunt. And those tiny dogs need additional care, more health issues, more care, and they have much shorter life spans even if reasonably healthy. In general someone breeding for super tiny dogs is someone to be wary of for many, many reason's. Do very tiny dogs occur, yes, but you don't irresponsibly match up your dogs to produce them for sales purposes. Breeding is supposed to be for those working hard to improve on something, and ultimate goal which will take several generations to get there and you need to know a lot to do it. When you are creating lives it should be taken as seriously as it deserves. Here's the link to the breed club on Chihuahuas and a statement they have made about that word (and the similar others) and a link to a video of a pup who was just way too small and mentions some of the contributing factors.. Good luck to you.
www.chihuahuaclubofamerica.com www.chihuahuaclubofamerica.com www.youtube.com
www.chihuahuaclubofamerica.com www.chihuahuaclubofamerica.com www.youtube.com