Pseudepiplatys annulatus, commonly known as the killifish or clown Killie, is a small and colourful freshwater fish native to West Africa. These charming aquarium fish are notable for their vibrant and intricate patterns, resembling miniature clowns, hence the nickname "killer clowns." With their striking colours and unique behaviour, killifish enthusiasts enjoy keeping them in aquariums. Pseudepiplatys annulatus is known for its relatively short lifespan compared to other fish species. Still, their captivating appearance and playful nature make them popular among aquarium hobbyists who appreciate the challenge of breeding and maintaining these delightful aquatic creatures.