I have a question about tilapia and aggression. I understand a high density tank population tends to have less aggression problems, but what is the situation in a low density tank? As in a starter situation where the tank is stocked with the number of fish it will support when the fish are mature, but now they are small? Do they now have room enough not to feel aggressive? Is there going to be a point where that same number of fish will become aggressive as they become larger? Or, because it is a gradual transition, do they not ever become aggressive?