2, but the dog ornaments at home should not be too much, one or two is enough. Dog ornaments of different colors should also be placed in different directions. Black dogs should be placed in the north, white dogs should be placed in the west, yellow dogs should be placed in the south, and dog ornaments should not be placed in the southeast. At the same time, as far as Chen and Xu collide, dragons collide with dogs, so if the owner of the house is a dragon, it is best not to put dog ornaments.