Common name: Bicolored foxface

General information

The Bursa Triggerfish, scientifically known as Siganus uspi, is a distinctive and colorful species popular among aquarists. It is also commonly referred to as the Fiji Blue Devil or Blue-spotted Spinefoot. This species is known for its striking blue spots and lines against a yellowish to olive green background, which make it a visually appealing addition to any marine aquarium.

Native to the Indo-Pacific region, the Bursa Triggerfish has a peaceful temperament compared to other triggerfish species, making it more suitable for community tanks. However, it is essential to note that they can become territorial, especially during breeding season.

Care

Siganus uspi requires a spacious tank with plenty of swimming room and hiding places. They are herbivorous, feeding primarily on algae and vegetable matter in the wild. In captivity, their diet should include a variety of algae-based foods, as well as spirulina, blanched vegetables, and marine pellets designed for herbivorous fish.

Regular water changes and stable water conditions are crucial for the health of this species. They are relatively hardy, but like all marine species, they are sensitive to fluctuations in water quality.

Reproduction

In the wild, Bursa Triggerfish form pairs during the breeding season. They are demersal spawners, meaning they lay their eggs on the substrate. The male guards the nest until the eggs hatch. Reproduction in the home aquarium is rare but not impossible with the right conditions and a well-established pair.

Habitat

The Bursa Triggerfish is found in shallow, coral-rich areas of the Indo-Pacific, from the Great Barrier Reef to the islands of Fiji. They prefer reef flats and lagoons, where they graze on algae growing on hard surfaces. In the aquarium, replicating their natural environment with live rock and a sandy substrate can help promote natural behaviors and overall well-being.