Squarespot Anthias

The Squarespot Anthias is one of the larger anthias species commonly available in the aquarium trade, reaching up to 8 inches in length. Males are immediately recognizable by the distinctive square-shaped purple spot on their flanks, set against a vibrant pink to magenta body with yellow highlights on the fins. Females lack the prominent square spot and display a more uniform orange-pink coloration. This size and bold patterning make the Squarespot Anthias a commanding presence in a large reef aquarium.

Widely distributed throughout the Indo-Pacific, Squarespot Anthias inhabit outer reef slopes and drop-offs where they form large aggregations in areas with moderate to strong current. Their larger size means they require more substantial aquariums than many anthias species, with a minimum of 100 gallons recommended for a small group. Despite their size, they maintain the peaceful temperament characteristic of anthias.

In the aquarium, Squarespot Anthias are moderately difficult to maintain. Their larger size means they consume more food, making the already-critical frequent feeding schedule even more important. An automatic feeder supplemented with manual feedings is strongly recommended. Keep one male with three to five females and provide plenty of open swimming space with moderate to strong water flow. Their dramatic appearance and active swimming behavior make them an impressive centerpiece fish for large reef systems.