Pictichromis paccagnellae (Pseudochromis real o Pseudochromis bicolor)

This small fish has a striking color pattern with purple or magenta on the front half and bright yellow on the back half, separated by a clear diagonal line. It is suitable for reef or nano aquariums but can become territorial with similar-sized fish in smaller spaces. It is carnivorous, eating small crustaceans and zooplankton, and accepts frozen foods like mysis and artemia.

• The description claims the fish can become territorial with similar-sized fish in smaller spaces.