I just watched something fascinating that I'm not sure I've seen discussed on the forum. In one of my enclosure I have two male and one female, melanistic vagrans. Usually I feed in a separate enclosure and I feed one at a time. This particular time I had some chopped up pinkies left over from feeding my two little Radix so i decided to put it on a small plate and give it the the vagrans. What I watched was without a doubt either a pecking order or at very least a display of dominance by the largest male. He hovered over the food and when the others came close he would put his face up against theirs and "intimidate" them away from the food! At one point he literally looked like he would bite them if they didn't back off. Which they always did. Finally the other male snuck a piece of food and the large male tried to take it out of his mouth! The little female was never even close enough to sneak a bite. The big male ended up eating the whole plate full while the others watched on! Fascinating! Has anyone else noticed this sort of behaviour?