Fiji Bicolor Foxface - Siganus uspi
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The Fiji Bicolor Foxface (Siganus uspi) is a striking and active herbivorous reef fish, recognized for its bold yellow and black coloration and fox-like facial markings. This semi-aggressive species is excellent for algae control in larger marine aquariums.
Common Name: Fiji Bicolor Foxface
Scientific Name: Siganus uspi
Family: Siganidae
Size: Up to 8 inches (20 cm)
Temperament: Semi-aggressive
Difficulty: Moderate
Reef Safe: With caution
Native Region: Found in the Western Pacific, particularly around Fiji, inhabiting coral reefs and lagoons with abundant algae.
Tank Size: Minimum of 75 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate: Live rock for grazing and hiding; provide open swimming areas.
• Diet: Herbivorous—feeds on algae and seaweed; supplement with marine algae sheets and high-quality herbivore foods.
• Behavior: Semi-aggressive; may establish territory, especially with other foxfaces or similar-shaped fish.
• Reef Consideration: Generally safe with corals, but may nip at soft coral.
• Tankmates: Compatible with most robust reef fish; avoid housing with aggressive or overly timid species.