Siganus spinus | S

Siganus spinus, commonly known as the Spiny Rabbitfish, is a visually striking species prized for its algae-eating capabilities and peaceful temperament. This small-sized fish is an excellent choice for hobbyists seeking a reef-compatible herbivore that contributes to natural algae control.

Care Level: Moderate. Requires stable water parameters and a well-established aquarium.

Temperament: Generally peaceful but may show territorial behaviour towards conspecifics or similar species. Best kept singly or in a large enough tank to accommodate multiple individuals.

Diet: Primarily herbivorous. Feed a varied diet rich in marine algae, seaweed sheets, and high-quality herbivore pellets or flakes. Supplement with occasional meaty foods.

Minimum Tank Size: 120 litres (approximately 30 gallons) to provide ample swimming space and grazing surfaces.

Reef Safety: Yes. Compatible with reef aquaria when provided with sufficient plant-based nutrition to discourage coral nipping.

Lighting and Water Flow: Standard marine aquarium lighting and moderate water flow are suitable. Ensure good water quality with regular maintenance.

Placement: Mid to upper levels of the aquarium, where it can graze on algae-covered surfaces.

Origin: Indo-Pacific region.

Maximum Size: Up to 20 cm (8 inches) in length.

Overall, the Spiny Rabbitfish is a hardy and attractive addition to marine tanks, especially for aquarists aiming to maintain natural algae control in a peaceful community setting.