One-spot Foxface Care Guide
Siganus gutatus · Saltwater Foxface

What One-spot Foxface look like
The One-spot Foxface (Siganus gutatus) is characterized by its oval, laterally compressed body, which can reach a maximum adult size of approximately 12 inches (30 cm). This species exhibits sexual dimorphism, with males typically displaying more vibrant coloration and larger dorsal fins compared to females. The body is predominantly yellow with a distinctive black spot located near the base of the dorsal fin, which serves as a warning coloration to potential predators. The fish possesses venomous spines on its dorsal fin, providing a defensive adaptation against predation. Other notable morphological features include a small mouth with incisiform teeth, adapted for grazing on algae, and a well-developed lateral line system that aids in detecting water movements.
Behavior & temperament
The One-spot Foxface is generally a peaceful species, often found in small groups or pairs, displaying a social hierarchy within their schools. They inhabit the reef's mid to upper levels, where they graze on algae and other benthic materials. During breeding, males may exhibit territorial behavior, displaying their fins and colors to attract females. Their temperament is usually non-aggressive, although they can become defensive when threatened, utilizing their venomous spines as a deterrent. They are known to exhibit a degree of shyness, often seeking shelter among rocks and corals when startled.
Diet & feeding
In the wild, the One-spot Foxface primarily feeds on benthic algae and detritus, making it an herbivorous grazer. In captivity, they require a diet rich in marine algae, spirulina, and high-quality herbivore pellets to maintain optimal health.
Behind the name
The genus name 'Siganus' is derived from the Greek word 'siganein', meaning 'to make a noise', while the species name 'gutatus' comes from the Latin word for 'spotted', referring to the distinctive black spot on its body.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping One-spot Foxface?
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