Common name: Catalina goby

General information

The Bluebanded Goby, scientifically known as Lythrypnus dalli, is a small and colorful fish that is popular among marine aquarium enthusiasts. It is known for its striking blue and orange bands that run vertically along its body, making it a visually appealing addition to any reef tank. This species is relatively peaceful and can be kept with a variety of other non-aggressive fish.

Care

Bluebanded Gobies are hardy and adaptable, but they do best in well-established aquariums with plenty of live rock for hiding and foraging. They are carnivorous, feeding on small invertebrates and zooplankton in the wild, so their diet in captivity should include a variety of meaty foods such as brine shrimp, mysis shrimp, and finely chopped seafood. They are known to jump, so a tank with a tight-fitting lid is recommended to prevent escape.

Reproduction

In the wild, Lythrypnus dalli are protogynous hermaphrodites, meaning they are born female and can change to male if the dominant male is removed from the group. In the aquarium, they can spawn regularly if kept in a group with a single male and several females. The male will guard the eggs until they hatch, which typically occurs after 7 to 10 days.

Habitat

The natural habitat of the Bluebanded Goby includes rocky reefs and tide pools in the Eastern Pacific, from Southern California to Baja California. They are typically found at depths ranging from intertidal zones to about 60 meters (200 feet).