Foxface Rabbitfish

Environment

Minimum volume of 400 liters for an adult (25 cm). Reef aquarium with numerous rock hiding places and moderate flow. Lighting that promotes natural algae growth. Temperature 23-26°C, pH 8.0-8.4, salinity 33-36 g/L. Good water quality essential (nitrates < 20 mg/L). Provide resting areas and numerous surfaces for grazing.

Feeding

Strict herbivore requiring several daily meals of algae (nori, spirulina, blanched lettuce). Supplement with quality vegetable pellets and encourage natural algae growth in the aquarium. Sometimes accepts enriched brine shrimp. Regular and varied vegetable intake is essential for its health and coloration.

Health & common diseases

The Foxface Rabbitfish is susceptible to ich (Ichthyophthirius), velvet disease (Oodinium), and bacterial infections during stress or poor water quality. Its venomous dorsal spines can injure the aquarist during handling and become infected if damaged. Watch for nutritional deficiencies (color loss, weight loss) in specimens that refuse algae. Prevention involves stable water, varied vegetable diet, and strict quarantine of new arrivals.

Tips & tankmates

Caution: venomous dorsal and anal spines can inflict painful stings (handle carefully). Generally peaceful but may become territorial with other Siganus. Compatible with clownfish, damsels, gobies, but avoid aggressive fish. Generally respects corals (except when starved). Introduce preferably into a mature aquarium with established algae. Pales at night (normal behavior). Hardy species recommended for biological algae control in reef aquariums.

Sources

• FishBase - Siganus vulpinus
• Reef Central - Foxface Rabbitfish care
• WetWebMedia - Rabbitfishes