I have never kept ciclids before but have recently purcased a pair. I am unsure as to what they are exactly though. I would like some basic knowledge of their breeding habits. At current they disappear into a hideout together and I can see that the lighter coloured one shakes its whole body quite violently. Is this a breeding sign? Or do they need special requirements to breed? I have no plants in the tank, does this matter? Are they egg layers? Where would they lay eggs if so?