Jansen saddle wrasse

The Jansen saddle wrasse (Thalassoma jansenii) is a tropical marine fish characterized by its vibrant colors, typically exhibiting a blue body with a greenish-yellow dorsal fin and a pinkish to orange stripe along its side. Native to the western Pacific Ocean, this species is found in coral-rich areas of lagoons and outer reef slopes. It has a slender body shape typical of wrasses. Despite its striking appearance, the Jansen saddle wrasse is not particularly well known in the aquarium hobby, partly due to its rarity and specific habitat requirements.