I finally came to the conclusion that if I am buying a small fish, I want to get them dirt cheap, as who knows what their color will do. Maybe if I was willing to pay for the high quality, their colors would be more stable from better breeding, but I am just looking for variety. On the otherhand, the fish you saw may have been off in color due to stress too. We have a few really pretty blue matsubas and an incorrect Ki Shusui (metallic) in the group, but when they went into the tote, they paled considerably. By the time I was taking pictures, they looked like totally different fish.