With difficulty... it typically requires two things from what I've been able to see:
1) selective pressure... by keeping some females or another male in the tank for competition.
2) a good diet, but not being overfed (more nutritious than filling) to help maintain coloration.
1) selective pressure... by keeping some females or another male in the tank for competition.
2) a good diet, but not being overfed (more nutritious than filling) to help maintain coloration.
