McCosker's flasher wrasse

The McCosker's flasher wrasse (Paracheilinus mccoskeri) is a vibrant, colorful marine fish native to the Western Pacific Ocean, particularly around Fiji, the Solomon Islands, and the Great Barrier Reef. It displays a vivid palette of colors, including a mix of red, orange, blue, and white with distinct fin markings, especially in males during their elaborate courting displays. This species is relatively small, reaching up to about 3 inches in length. In the aquarium hobby, it is moderately well-known and appreciated for its dynamic colors and behaviors, making it a popular choice among marine aquarists who seek to add a splash of natural beauty to their tanks.