Ah ok. Mine is only 6 inches or so and not much color at all. I got rid of a few fish, but decided to keep him to see how he colors up when he is older.
Usually at around 4". Here are a couple of pics of my pair. You can see in the last pic the male has lost alot of the blue and looks a little washed out. They had just laid eggs and they get that strong contrasting pattern when they do!