A Shy Ramirezi?

[Milden]

Well, I have two ramirezis in my aquarium (60l), a male and a female i think, but the female is always hide, behind a rock, behind the decoration and etc....
 
Is she with stress or it's just her personality? How can I know it?
 
A pair of photographies:
Female:
 

 
 
Male:

 

[onidrase]

could be stress or perhaps getting picked on by the male to breed. Keep an eye on them and watch for any chasing done by the boys. The males tend to be very feisty with the ladies trying to make love. I've never known german blue rams to be of the shy type, though.