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A tiny, bright red fish with blue stripes and spectacles. They live in small groups with a single male and multiple females. If the male leaves or dies, the largest female changes sex.
They are generally short-lived, though may live for up to 18 months.
This is a small fish at around 6.5cm long.
Bluebanded gobies are a red cigar-shaped fish with between two and six bright, almost iridescent, blue bands around the head and eyes.
Theya re found in the eastern Pacific, from Monterey to the Gulf of California.
A subtropical species, they are associated with rocky reefs and walls, to depths of 75m.
They are territorial and sit on rock surfaces, retreating into holes when threatened.
They feed on small crustaceans.
Bluebanded gobies live in small groups comprising a single male and several females. If the male leaves the group, or dies, the largest female changes sex.
They can be quite aggressive for their size and will attack smaller fish.
They spawn between February and September. The female lays her oblong eggs in empty shells. The male guards the eggs until hatching.
Not on IUCN Red List