Well for starters those are probably just SB Pink Convicts and not Parrots. Second while your aunt might be doing it that way, that doesn't mean its how its done in the business. They do dip them in acid and its horrible.They don't have to be dipped into an acid bath to retain the color...my aunt breeds parrots, and dyes them...she just adds food coloring to the tank, and after a week of 10% daily water changes and adding more water/food coloring the fish come out with a slight tint....and she sells them to kids around her neighborhood... 'Jelly Bean' parrotfish