I agree with Rottbo.. They are getting ready for an upgrade in living space As for breeding.... I Believe like ID's they have not been bred in Aquaria ...
what are they in??? Mine were very aggressive and very jumpy when in my 110 but now that they are in my large pond they are very calm and dont mess with anyone
they are pretty calm now...it was an observation during the first day of acclimation, but def. something to look out for in the future, how big are yours rottbo?