Silver Belly Wrasse

Silver Belly Wrasse

The Silver Belly Wrasse (Halichoeres leucoxanthus), also called the canary-top or yellow-back wrasse, is a hardy and attractive reef fish — bright yellow along the upper body and clean white below, with fine markings around the face. Active and constantly on the move, it is one of the easier Halichoeres wrasses, combining good looks with the genus's useful habit of hunting pest invertebrates. It is a fine choice for a community reef.

Like other Halichoeres, it dives into the sand to sleep and to escape danger, so a soft sand bed is part of its care.

Natural Habitat & Origin

Halichoeres leucoxanthus is found in the Indian Ocean and adjacent western Pacific, where it ranges actively over reefs and sandy areas, hunting small invertebrates over and within the substrate. It buries in the sand at night and when threatened.

In the aquarium it wants open swimming space, live rock with crevices, and a fine sand bed it can dive into.

Care Requirements

Maintain stable marine conditions: salinity around 1.024–1.026, pH 8.1–8.4, and a temperature of about 24–26°C (75–79°F). Reaching about 10 cm (4 inches), it suits a tank of around 115 litres (30 US gallons) or more with a fine sand bed and plenty of rockwork. A secure, gap-free lid is essential — wrasses are accomplished jumpers. It is hardy and adaptable, an excellent beginner wrasse.

Diet & Feeding

The Silver Belly Wrasse is a carnivore, feeding on small crustaceans and invertebrates in the wild — including pest species, which makes it useful in a reef. Offer a varied diet of frozen mysis and enriched brine shrimp, finely chopped seafood and quality marine pellets, fed once or twice a day. It is an active, enthusiastic feeder.

Behavior & Temperament

This is a generally peaceful, active fish that mixes well in a community, though it is a busy swimmer that can outpace shy tankmates at feeding time. It is best kept singly unless the tank is large. It spends its day ranging over the rocks and sand in search of food, diving into the substrate to rest.

Tank Mates

Good companions are a wide range of peaceful to semi-aggressive reef fish — clownfish, tangs, gobies, other (dissimilar) wrasses and similar. It is reef-safe with corals and ornamental invertebrates, though as a small predator it may eat tiny shrimp along with pest species such as bristleworms and pyramidellid snails — often a welcome trait in a reef.

Breeding

Halichoeres leucoxanthus is a protogynous hermaphrodite and pelagic spawner; rearing the larvae is beyond the home aquarium, so trade specimens are wild-collected.

Common Health Issues

The Silver Belly Wrasse is hardy but, like all marine fish, can be affected by marine ich (Cryptocaryon irritans) and marine velvet (Amyloodinium ocellatum), particularly when stressed. Quarantine new arrivals, keep water quality stable, provide a sand bed for sleeping, and secure the lid against jumping. Given those basics it is a hardy, active and useful wrasse — and an excellent beginner choice for a reef.