Orbiculate Cardinalfish

The Orbiculate Cardinalfish is a close relative of the popular Pajama Cardinalfish, sharing a similar body shape and the distinctive divided color pattern that makes the Sphaeramia genus so recognizable. Its body is characterized by a rounded, somewhat compressed shape with a silvery-olive base coloration marked by darker spotting on the posterior half. A dark vertical band separates the anterior and posterior halves of the body, much like its pajama cousin.

This species is commonly found in sheltered bays, lagoons, and mangrove areas throughout the Indo-Pacific, often forming small groups among branching corals and sea grass beds. In the aquarium, it retains its natural schooling tendencies and is best appreciated when kept in groups of three to five individuals. Its calm demeanor and hovering swimming style create a relaxing, natural display.

The Orbiculate Cardinalfish is an extremely hardy and forgiving species, making it one of the best choices for beginning marine aquarists. It tolerates minor fluctuations in water quality, readily accepts a variety of prepared foods, and rarely shows aggression toward tankmates. Its combination of interesting appearance, ease of care, and peaceful temperament has earned it a loyal following in the hobby.