I'm interested in the article or publication that proposes aggression with non clonal nems. I'm currenrly keeping four strains of bta and would like to learn more about it on a technical level.
Here's a video of two members of the same species going at it.
<iframe width="425" height="349" src="http://www.youtube.com/embed/_jNwWQtLeY4" frameborder="0" allowfullscreen></iframe>