Reds and yellow neos can and probably will develop blues. Almost every chondro I've seen has blue some where. In high end pairings reds are favored over yellow because of the darker pigment. All of them undergo ontogenic color change. Even true canaries change their dorsal markings. Changes are it will be green. Some lucky people have gotten crazy animals out of normal babies, but it's rare. All chondros are cool though, so you'll be happy.