Hi, Any ideas on what this guy is? Started out all red and white, and at about 2 weeks old, has this distinctive pattern to the wings. They came from a tub at TSC marked "mixed reds." I'm sure it's obvious to those who have had this kind before, but I haven't. (They were in with some red sex-links, which is what I really wanted, so these were an add-on to make 6.) Thanks!