armadillo

Hi guys/gals. Well the title pretty much says it all. I was happily suprised to notice how active and out in the open the dwarf loaches are. At feeding time, sometimes I like to target feed my mollies worms on a stick. Now the dwarf loaches join in and have a quick bite of the stick am holding to make sure there's no food on it. Awesome. Never thought they'd be that interactive with me.

Anyways, my question is this: now, around feeding time, the dwarf loaches join the mollies in the frenzied pack, and they appear to be touching the mollies with their noses on the belly at quite high speed, then do a u-turn. It doesn't look like the mollies head-butting behaviour, as their speed is constant (when the mollies attack each other, they circle the 'victim' and then dart toward them, then they resume normal swimming. The loaches on the other hand are just constantly fast swimmers). So that makes me wonder: are they 'schooling' with the mollies and the touching is some kind of schooling hierarchy thing, or are they biting/head butting them and being aggressive? The mollies don't seem to mind whatsoever.