Fiji Foxface (Foxface Rabbitfish, Siganus sp.) is a hardy, hardworking algae grazer with a calm personality and a bold, eye-catching look. Known for its sleek body, striking facial markings, and bright yellow tones, the Foxface is a favourite for reef keepers wanting both beauty and utility—especially in systems where nuisance algae can creep in. Once settled, they’re active, confident swimmers that bring constant movement to larger reef displays.
For best results, keep a Fiji Foxface in a spacious, stable aquarium with plenty of open swimming room and rockwork to browse. They do best in mature systems with strong filtration and consistent parameters, as they’re active and produce a moderate bioload. Provide a few caves or overhangs—Foxfaces like to wedge themselves into rockwork to rest and may darken in colour when sleeping or stressed, which is normal.
Diet should be algae-forward with variety. While they’ll naturally graze film algae and some nuisance growth, you’ll get the best health and colour by supplementing daily with dried seaweed (nori), quality herbivore pellets, and a mix of frozen foods. A well-fed Foxface is less likely to “experiment” with corals and will maintain good body condition. Feed 1–2 times daily and offer greens regularly, especially if the tank is very clean.
Temperament is generally peaceful to semi-peaceful, and they’re usually excellent community fish with most reef-safe tankmates. They can be timid at first and may be bullied by aggressive tangs or large wrasses, so ensure they have space and shelter. One important note: Foxfaces have venomous dorsal spines used for defence. They’re not aggressive, but care should be taken during netting, bagging, or maintenance—use a container when possible and work calmly around the fish.
Reef compatibility is commonly rated “reef safe with caution.” Most Fiji Foxfaces behave well in mixed reefs and are chosen specifically for algae control, but individual fish can occasionally nip at soft corals or LPS—usually when underfed or if they develop a taste. Keeping them well-fed with plenty of greens greatly reduces this risk. With the right tank size, diet, and thoughtful tankmate selection, a Fiji Foxface is one of the best all-round additions for a healthy, balanced reef system.
