Red Head Goby Care Guide
Elacatinus puncticulatus · Saltwater Goby

What Red Head Goby look like
Elacatinus puncticulatus, commonly known as the Red Head Goby, exhibits a streamlined body that can reach a maximum adult size of approximately 2.5 inches (6.4 cm). This species is characterized by its striking coloration, with a vibrant red or orange head that transitions into a lighter, often translucent body adorned with small, dark spots. Sexual dimorphism is subtle, with males typically displaying more intense coloration and slightly larger sizes than females. Defensive adaptations include a flattened body that allows for quick retreats into crevices, as well as the ability to blend into the substrate. Notably, this species possesses a well-defined lateral line system, which aids in detecting water movements, and its dentition is adapted for grazing on algae and detritus.
Behavior & temperament
The Red Head Goby is a social species often found in small groups within its natural habitat, exhibiting a clear social hierarchy. They are typically found at the substrate level, where they engage in foraging behavior. Breeding occurs in pairs, with males performing courtship displays that include color changes and body posturing to attract females. Their temperament is generally peaceful, but they can exhibit territorial behavior, particularly during breeding seasons, towards other gobies. They are known to establish symbiotic relationships with certain species of shrimp, benefiting from the shrimp's burrows for shelter while providing the shrimp with protection from predators.
Diet & feeding
In the wild, Elacatinus puncticulatus primarily feeds on algae, zooplankton, and detritus, making it an omnivorous grazer. In captivity, they require a varied diet that includes high-quality flake food, frozen or live foods such as brine shrimp, and algae-based supplements to maintain optimal health.
Behind the name
The scientific name 'Elacatinus' is derived from the Greek words 'elakos,' meaning 'small,' and 'atinus,' referring to a type of fish. The species name 'puncticulatus' comes from the Latin 'puncticulatus,' meaning 'spotted' or 'dotted,' which describes the distinctive markings 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 Red Head Goby?
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