Description
Bicolor Anthias – Mirolabrichthys bicolor
Mirolabrichthys bicolor, commonly known as the Bicolor Anthias, is a vibrant reef fish distinguished by its vivid two-toned coloration—an intense magenta-pink anterior fading into a rich yellow posterior. Found along deep reef drop-offs and outer slopes, it moves gracefully in the water column, forming small social groups. This species thrives in well-oxygenated, stable aquariums that mimic its natural pelagic habitat.
Origin: Indo-Pacific region – from the Maldives and Sri Lanka to Fiji and Samoa
Lighting: Moderate (avoid intense light; prefers diffused illumination)
Flow: Moderate to strong, with directional current
Tank Placement: Midwater; appreciates open space with rocky overhangs or shaded zones
Temperature: 74–80°F (23–27°C)
Salinity: 1.022–1.026 SG
pH: 8.1–8.4
Diet: Carnivorous planktivore – feed small, frequent meals of mysis shrimp, enriched brine shrimp, and finely minced marine fare
Temperament: Peaceful; may display mild hierarchy behavior in groups
Size: Up to 12 cm (4.5 inches)
Care Level: Advanced – sensitive to transport and acclimation stress; benefits from gradual light acclimation and stable parameters
Compatibility: Suitable for tranquil reef aquariums with non-aggressive tankmates; best kept singly or in small harems with ample space
