Thalassoma lunare The Lunare Wrasse is a fast-moving, high-energy reef fish that adds vibrant color and constant activity to larger saltwater aquariums. Known for their bold personality and striking color transformation, these fish are as eye-catching as they are entertaining. Juveniles display a blue lower body with a black spot on the mid-dorsal fin and a dark blotch at the base of the tail. As they grow, the tail blotch fades into a yellow crescent, and their body shifts to a vivid green, highlighted with bright markings on the face and fins. Their coloration can also change with mood or social dynamics—dominant individuals often appear more vibrant, while stressed or submissive fish may show duller tones. To thrive, Lunare Wrasses need plenty of open space for swimming, along with rockwork and sandy areas for hiding, exploring, and resting. They can be territorial, especially in smaller tanks or when housed with similar-sized or shaped species, so choose tank mates carefully. A secure, tight-fitting lid is essential—they’re skilled jumpers and will leap if given the chance. Feeding is simple—they eagerly accept a variety of carnivorous foods including fresh or frozen mysis shrimp, squid, clams, and high-quality marine flakes or pellets for carnivores. Reaching up to 10 inches in length, the Lunare Wrasse requires a minimum tank size of 100 gallons. In the wild, they’re found across the Indo-West Pacific—from the Red Sea and East Africa to the Line Islands, southern Japan, Lord Howe Island, and northern New Zealand, with this fish being collected near the Philippines. They typically inhabit coastal lagoons and outer reef slopes at depths of up to 65 feet.