Description
Scribbled Rabbitfish – Siganus doliatus
Siganus doliatus, known as the Scribbled Rabbitfish or Blue-Lined Rabbitfish, is a peaceful and striking herbivore distinguished by its intricate maze-like blue and yellow facial markings and silvery body with fine horizontal striping. Found across shallow coral reefs and lagoons, this species is a diligent grazer that helps control algae growth, making it both beautiful and beneficial in reef aquariums.
Origin: Indo-Pacific – from Indonesia and Papua New Guinea to the Great Barrier Reef and the Solomon Islands
Depth: 2–30 m (6–100 ft)
Lighting: Moderate to high (enhances blue and yellow coloration)
Flow: Moderate; thrives in well-oxygenated, reef-like conditions
Tank Placement: Mid to upper water column; requires open swimming space and live rock for grazing
Temperature: 75–80°F (24–27°C)
Salinity: 1.022–1.026 SG
pH: 8.1–8.4
Diet: Herbivorous – grazes on macroalgae and film algae; diet should include nori, spirulina, and vegetable-based preparations
Temperament: Peaceful; generally non-aggressive and well-suited to community setups
Size: Up to 25 cm (10 inches)
Care Level: Intermediate – hardy and adaptable but requires regular feeding and stable conditions
Compatibility: Excellent for reef aquariums; may occasionally nip at soft corals if underfed, but otherwise reef-safe and harmonious
