Siganus magnificus
| Identification | White body with a dramatic jet-black mask covering the face, extending into the dorsal region. Long, pointed snout characteristic of Foxface rabbitfish. Body coloration shifts rapidly to a mottled brown-and-white camouflage pattern when stressed. |
| Maximum Length | 9 inches (23 cm) |
| Origin | Eastern Indian Ocean — Andaman Sea, western coast of Sumatra, Maldives |
| Minimum Tank Size | 100 gallons |
| Reef Compatibility | Yes with caution — may nip at LPS and soft corals if underfed |
Behavior
A bold, active fish that is generally peaceful toward unrelated tankmates. Can be kept singly or as a bonded pair (introduce both simultaneously). Like all rabbitfish, the Magnificent Foxface has venomous dorsal, pelvic, and anal fin spines capable of delivering a painful sting — use caution when working in the tank and when netting. Color rapidly fades to a mottled camouflage when the fish is stressed or sleeping; this is normal.
Diet & Feeding
Primarily herbivorous. Offer nori seaweed on a clip daily, algae-based pellets, and spirulina flake as the staple diet. Will graze on natural algae growth. Supplement a few times weekly with frozen mysis or enriched brine shrimp. Consistent feeding is important in reef tanks — a well-fed Foxface is far less likely to sample coral.
Cautions
Venomous fin spines. A sting causes intense localized pain. Soak affected area in hot water (as hot as tolerable) for 30–90 minutes to denature the venom. Seek medical attention if pain is severe or symptoms spread.