Catalina GobyBlue-banded GobyFamily: Gobiidae Lythrypnus dalliPhoto © Animal-World: Courtesy David BroughLatest Reader Comment - See More The term for when a fish changes its gender is sexual diamorphism. These are a great temperate species but are very territorial. So make sure their line of view is... (more) Anonymous A very beautiful and usually hardy fish, they remain quite small. The Catalina Goby or Blue-banded Goby can be good for a reef aquarium to add color and movement.NOTE: The Catalina Goby or Blue-banded Goby must be kept at a lower temperature than most marine fish!A cold water marine aquarium is ideal as these are not a "tropical" fish. They are "coldwater" fish, which means they will thrive best in temperatures in the 50°s and 60°s F (with the highest temperatures being 74° F). For more Information on keeping this fish see: |
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Maintenance difficulty: The Catalina Goby or Blue-banded Goby is easy to keep in the right environment. The temperature must be lower than most marine aquariums, some say less than 23° C (74° F). Provide plenty of caves and hiding places.
Maintenance/Foods: The catalina is a typical goby eating small crustaceans and other small marine organisms. Live brine is ideal for the aquarium.
Habitat: Natural geographic location: Catalina Goby or Blue-banded Goby are found in the eastern Pacific, Gulf of California. Usually found in fields of boulders and on rocks at depths of 0 to 60 meters.
Social Behaviors: Although they are a territorial fish, several can be kept in an aquarium of reasonable size, say 30-40 gallons. They are peaceful with small fish but may be bullied by larger tank mates.
Sex: Sexual differences: The males have a longer dorsal fin than the females.
Breeding/Reproduction: They have spawned in captivity but successful rearing of the fry has not been successful. They spawn frequently during the summer months. The fry are only 2.5mm long.
Light: Recommended light levels: No special requirements.
Temperature: These fish require lower temperatures than the normal marine temperatures. They will thrive best in temperatures in the 50°s and 60°s F with 74° F being the maximum.
Length/Diameter of fish: Catalina Goby or Blue-banded Goby adults can grow to 2.5 cm (1.0 inches).
Minimum Tank Length/Size: A minimum 20 gallon aquarium is recommended.
Water Movement: Weak, Moderate, Strong No special requirements.
Water Region: Top, Middle, Bottom Usually spends most of its' time on rockwork or live rock near the bottom. A bottom dweller.
Availability: This fish is usually available and is moderately expensive.
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