LEFT: Mature male and female Incisus. Here you can see the difference between the two sexes. The female is a silvery grey, and the male a salmon red.

BELOW: Mature male Incisus.

It is common for males to have little colour until they have settled into a tank. Their colour, and the intensity, and the shade of the red can also vary considerably, depending on mood and lighting. Females can also have some colour variation. They can appear silver/grey to coppery, but never red.