Eastern Pacific, California to Mexico (cool waters)
Water
saltwater
Maximum size
5 cm
Temperature
16–22°C
pH
8.1–8.4
Hardness
Salinity SG 1.023–1.026
Minimum tank
60 litres
Care level
intermediate
Temperament
peaceful
Reef safe
yes
Care
A tiny red goby with bright blue bands. The list notes that it is a cold-water species, so it needs a chilled aquarium: the temperatures here are general guidance for temperate marine species, not species-specific, and it will not live long in a tropical reef. Wikipedia article not checked for this entry; details are from the list and general marine husbandry. Water figures here are general marine aquarium guidance, not species-specific: 16–22 °C, pH 8.1–8.4, salinity SG 1.023–1.026. Minimum tank size of about 60 litres is our estimate from the adult size and habits, not a published figure. Sources: Wikipedia, List of marine aquarium fish species (en.wikipedia.org/wiki/Listofmarineaquariumfishspecies). Checked October 2026.
Diet
Offer small meaty foods such as mysis, copepods and brine shrimp.
Breeding
Breeding in home aquaria has not been reported in the sources used here.
Compatibility and tank mates
Peaceful and reef safe. Keep with other cool-water species; males may squabble, so give plenty of rock.
Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.
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