Orange Spotted Rabbitfish (Siganus Guttatus)
Orange Spotted Rabbitfish (Siganus Guttatus)
The Orange Spotted Rabbitfish (Siganus guttatus), also known as the Goldlined Spinefoot, is a vibrant marine herbivore distinguished by vivid orange-to-yellow spots across a light pearly body. Renowned for its exceptional grazing habits, this species actively consumes nuisance hair and bubble algae to help maintain a pristine marine environment.
Reaching an adult length of 25 to 38 cm, it thrives in spacious aquariums with ample swimming room and established live rock. While peaceful toward most tankmates, it possesses defensive venomous spines and requires dedicated vegetable-based nutrition to flourish safely in reef environments.
Key Features
| Scientific Name | Siganus guttatus |
| Common Name | Orange Spotted Rabbitfish |
| Alternative Names | Yellow Blotch Rabbitfish, Goldlined Spinefoot, Gold Saddle Rabbitfish |
| Origin | Indo-West Pacific |
| Max Size | 25–38 cm |
| Temperament | Peaceful (Venomous Spines) |
| Diet | Herbivore |
| Minimum Tank Size | 454 L |
| Reef Compatibility | With Caution |
| Care Level | Moderate |
Highlights
- Diet: This fish is a dedicated Herbivore (Algae Eater). Its diet must consist primarily of various algae. It should be fed large amounts of dried seaweed (Nori) attached to a clip, multiple times per week. The diet should be supplemented with high-quality vegetable-based flake or pellet foods containing Spirulina. A well-established tank with plenty of live rock for grazing is essential.
- Algae Control: Rabbitfish are known to aggressively graze on nuisance algae, including hair algae and bubble algae.
- Reef Compatibility: It is Reef Safe With Caution. When well-fed on marine algae, it generally leaves corals alone. However, if underfed, it may nip at or consume the polyps of some Large Polyp Stony (LPS) and soft corals.
- Temperament: It is peaceful toward most other tankmates, including tangs, wrasses, and angels. Its venomous spines allow it to coexist with larger, more aggressive fish. It should not be housed with other rabbitfish (including Foxfaces), as they will often fight, though a well-established mated pair can sometimes be kept in a very large tank (180+ gallons).
- Venomous Spines: The venom is delivered through grooves in the spines and causes extreme pain but is rarely life-threatening to healthy humans. If stung, soak the affected area in the hottest water tolerable (not scalding) for 30-90 minutes, as heat breaks down the protein-based venom. Seek medical attention immediately.
Compatibility
Peaceful with tangs, wrasses, and angelfish, but aggressive toward other rabbitfish and Foxface species. Best kept as a single specimen unless introduced as a bonded pair in systems exceeding 681 L.
How to use
Acclimate slowly to a well-established marine aquarium containing mature live rock. Provide daily grazing opportunities using nori clips and monitor interactions with corals closely during feeding.
Frequently asked questions
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