The Canarytop Wrasse, Halichoeres leucoxanthus, is a compact Indian Ocean labrid found along reef edges bordering sand and rubble, including populations in the Andaman Sea, at depths from roughly 7 to 60 meters. Coloration is cleanly divided: a bright canary-yellow upper body meets a crisp white lower body, giving the fish a distinctive two-tone profile as it cruises the substrate. Males carry black spots along the dorsal fin and an additional spot on the caudal peduncle, while females lack the dorsal markings. Adults reach approximately 5 inches.

Adult housing should begin at 55 gallons and emphasize open sand for swimming, since this wrasse patrols the bottom throughout the day. Build in live rock with crevices and overhangs so the fish has continuous hunting structure, and pair that rockwork with a deep bed of fine sand. The sand is not decorative: this species burrows to sleep and dives beneath it when startled, so coarse or shallow substrate compromises its natural security. A tightly fitted lid is essential, as this is a proven jumper that can find any small gap in canopy or overflow.

Choose an established, biologically mature system rather than a newly cycled tank. Care is moderate largely because of the acclimation period. Freshly introduced individuals often remain buried in the sand for several days before emerging, and shipping stress or mouth injury sustained during handling can complicate that transition. Dim lighting, a quiet room, and patience during the first week improve the odds of a smooth settling-in.