These will be between 3.25 and 3.75 inches with most of them being 3.5 inches. Full coloration and pattern will not fully show until they are adults. As juveniles they have a beautiful gold-red coloration. They will become more red as they mature. The amount of patterning will vary significantly with some having very little pattern. The picture is of an adult. Juvenile coloration will vary. We are always willing to try and sex our fish for a customer, but we do not guarantee it. All Discus are unique and the coloration/pattern of each can vary.