Aquarium Fish

Bluespotted Jawfish

posted: 05/15/12
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Bluespotted Jawfish
Courtesy of Drs. Foster and Smith
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The Bluespotted Jawfish, also known as the Blue Dot Jawfish, was first discovered in the Tropical Eastern Atlantic in 1991 by Allen and Robertson. Its head and body are orange with irregular-shaped blue spots.

It should be kept in a 30 gallon or larger aquarium with docile tank mates and at least 3 inches of mixed substrate for burrowing. These fish are very aggressive towards others of their own species, so only one specimen, or a mated pair, should be kept per tank. The Bluespotted Jawfish is known to be a jumper, so it is best kept in an aquarium with a tight-fitting lid to prevent escape.

The diet should consist of a variety of marine fish, crustacean flesh, and mysid shrimp. It should be fed at least three times per day.

Like other gobies, they are generally compatible with: Dwarf Angelfish, Anthias, Basslets, Batfish, Blennies, Boxfish, Butterflyfish, Cardinalfish, Clownfish, Damselfish, Filefish, Hawkfish, Pseudochromis, Puffers and Tangs & Surgeons.

Fish Facts

Name: Bluespotted Jawfish (Opistognathus rosenblatti)

Family: Opistognathidae

Range: Tropical Eastern Atlantic, Western Atlantic

Size: Up to 4 inches

Diet: Carnivore

Tank Set-up: Marine: Coral or rock, plants

Reef Compatible: Yes

Tank Conditions: 72-78°F; sg 1.020-1.025; pH 8.1-8.4

Minimum Tank Capacity: 30 gallon

Light: Medium

Temperament: Semi-aggressive

Swimming Level: Bottom

Care Level: Moderate

Reproduction: Egg Layer

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