I have 5 pest, 2dogs and 3 cats. The question is why do the fleas seem to only lay eggs on my mini schnauzer and my sm. female persian? They are the only ones to have small bald spots. The cats donot go outside but the dogs do. But the other 3 pets hardly itch. Confused.
I would be very surprised if any of your pets don't have fleas. You can not visualize flea eggs. I would treat all pets with a flea preventative. vetcare