There is nothing wrong with breeding veiltails persay if it's something you want to do, but keep in mind unless they are top notch or unusual most people will not pay more than about 5 dollars for one after all you can buy them anywhere else for that and I seriously doubt people will buy one then pay 35 dollars for shipping for one, which limits your buyers to being local, I am starting to see veiltails with nice colars as well as spadetails, which is nice to see they had disappeared for a time and dragon scales and other newer traits from other types of bettas