Mosaic Guppy Male. You could find a mosaic and shades of red, violet, orange, blue, and yellow. It has become relatively well known among aquarists, and females are also brightly colored. These guppies are beautiful and peaceful fish. They are great for beginners and come in all different colors. While every guppy is unique, all mosaic guppies have a striking, spotted, and flowy appearance with different shades of color. One of the most popular mosaic guppies is the dragon mosaic guppy.