Foxface Rabbitfish (Siganus vulpinus)OverviewThe Foxface Rabbitfish (Siganus vulpinus) is a striking and unique marine fish known for its vibrant yellow body, contrasting black facial mask, and sharp venomous spines on the dorsal fins. Native to the Indo-Pacific region, including the Philippines, Indonesia, and the Great Barrier Reef, this species is a peaceful herbivore and an excellent addition to community and reef aquariums.Foxface Rabbitfish are active grazers that help control algae growth and display intriguing behaviors such as “flaring” their dorsal spines when threatened.Aquarium Requirements Minimum Tank Size: 75 gallons (285 litres) Temperature: 24–27°C (75–81°F) pH: 8.1–8.4 Specific Gravity (Salinity): 1.020–1.025 Alkalinity: 8–12 dKH Ammonia & Nitrite: 0 ppm Nitrate:< 10 ppm Aquascape: Provide ample swimming space, live rock for grazing, and hiding places to reduce stress Foxface Rabbitfish are active swimmers and benefit from a well-maintained, spacious aquarium with stable water conditions.Diet and FeedingPrimarily herbivorous, the Foxface Rabbitfish thrives on a diet rich in marine algae: Dried seaweed (nori) or macroalgae sheets Spirulina-based flakes or pellets Frozen or prepared herbivore blends Occasional small amounts of meaty foods Feed two to three times daily in small portions to promote natural grazing behavior and maintain health.Temperament and CompatibilityFoxface Rabbitfish are generally peaceful and reef safe, though they may become territorial toward similarly sized species if the tank is crowded.Tankmate Recommendations: Suitable: Peaceful or semi-aggressive species such as tangs, angelfish, clownfish, and wrasses Avoid: Aggressive tankmates that may stress the Foxface Introduce slowly to an established aquarium to minimize stress and encourage natural behavior.Reef Compatibility✅ Reef SafeFoxface Rabbitfish are reef safe and do not harm corals or sessile invertebrates. Their algae grazing helps maintain a balanced reef environment.⚠ Caution: The dorsal spines are venomous and can cause painful stings. Handle with care during maintenance.Additional Information Maximum Size: Up to 25 cm (10 inches) Lifespan: 8–10 years with proper care Difficulty Level: Moderate Natural Behavior: Peaceful herbivore, active swimmer, uses venomous spines for defense Origin: Indo-Pacific reefs, including the Philippines, Indonesia, and Great Barrier Reef
