I was curious how many sunfish can be kept in a 75 gal? I know some get to large and I also know aggression will also play a roll in stocking too. I am interested in Dollar sunfish or Longear sunfish in particular. A few years back I kept two Pumpkin seed sunfish and thought two seemed like too many for a 55 for aggression however I also kept two Rock bass more recently and they seemed fine in the 55 for the time being.