fidhw wrote:
Do I have two males, or is this pair behaviour? Is there anything I
can
do? The supplier is happy to have the fish back if I am concerned
(which
I am) but they haven't injured each other (yet), should I give up?

Hard to say if you have two males from your description. The female
blue rams typically have a pinkish belly. Bolivian rams are nearly
impossible to differentiate (at least, I sure can't tell).

I wouldn't worry too much about their quarreling, though. This is
pretty typical for rams. I've got both blue rams and Bolivian rams,
and all of them push each other around. None have ever hurt one
another, though. The behavior isn't nearly as aggressive as that of
other cichlids.

In fact, its almost comical to watch.