Chrysiptera taupou
3-5 cm
They are also commonly known as "Taupo Goldfin Damselfish", "American Blue Devil", or "Fiji Blue Devil". These small tropical saltwater fish are widely distributed in the coral reef waters of the western Pacific Ocean. Their bodies shimmer with a bright cobalt blue color, while their bellies, tails, and the edges of their dorsal fins are adorned with beautiful golden or red hues.