I am interested in having Ollie microchipped, but not sure if they are all the same or if one is better. Also, will he have to be put under to have it done?
Yes, that is true. I can feel Crystal's microchip (she was microchipped at 5 months) and I do get the feeling that it is like "a small grain of rice".The microchips are about the size of a small grain of rice I think and they just inject it like they would a shot.
ps. just to add more info (in case there was anyone reading this thread/the above specific quote who is new to maltese or dogs in general...or new to places where you can get a 4 legged friend): I do not recommend a pet store as a place where a person should look at when getting his/her new fluff baby. I wish that everyone can be aware about pet stores' sources for puppies; pups come from puppy mills...etcSnowy came to me microchipped (in Europe) before reaching the local pet store.