I have a juvenile Lunar Wrasse, he is green on his back and light blue on his tummy with standard facial markings. He has a black dot on his back and on his tail. Every so often I have observed that his coloration and Marlins have changed. He will turn mostly light blue and the facial markings and spots are very faint or dissapear all together. Does anyone know the significance of this? I am worling in getting additinal photos.