Labidochromis Caeruleus Changing Color?

[MikeD67]

Ok i know im not seeing things but i was sitting here looking at my fish and my Male Caeruleus swam tro front of tank and was looking at me. While looking at him I noticed his color was changing around his mouth and to his gills a light blueish color looks also like the strips on his body are getting more distinctive. This isnt normal for a Labidochromis Caeruleus is this?? Im sure its not the way the lights are hitting him unless its every angel i look at him is the way the lights shine on him.

 

[fuzzyferret]

Sometimes the male colours change slightly when they become mature, I think.
My male does this when he feels the urge to chase a female around!!

His chin goes darker, and his colours become even more striking - I quite fancy him myself looking like that!

 

[dthoffsett]

Yup, they'll sometimes do that when they are in the mood to breed.