Pseudanthias pleurotaenia (male)

Pseudanthias pleurotaenia, commonly known as the Square-spot anthias, is a medium-sized Pseudanthias species, which is easily recognized due to the square spot on the side. Coloration is very variable, as is the size, color and intensity of the square spot on the flank. Like all anthias, it's an active fish, which is best kept in a group/school of at least 4-6 fishes. When buying a school you don't need to worry about sex ratios because these fish are hermaphroditic. This means the most dominant fish will automatically turn into the male when there is no other male around.

Keeping this fish in larger numbers will definetely make it shine. Do make sure they can eat multiple times a day though, because in nature they feed on zooplankton the entire day, and are not build for one meal a day!