As I am raising my fish to eat, size matters. If I have runts is it possible to separate them so they don't have to fight so hard to eat, thus grow larger? I know that runts can be genetic or they can be a survival of the fittest thing. Will separating the little guys from my big guys help them become big guys? They are awfully hard to catch though, darting in and out of their bigger brothers. Tilapia by the way is my breed of choice. Is there an age that the separation won't make any difference, if it will make a difference in the first place? Just thinking.