Blue Dot Jawfish

Description

Blue Dot Jawfish

Opistognathus rosenblatti

Origin: Eastern Pacific – Gulf of California (Sea of Cortez), Mexico

Size: Up to 10 cm

Reef Compatibility:

• Small Fish Safe: ✅ Yes
• Invert Safe: ✅ Yes
• Coral Safe: ✅ Yes

Diet: Carnivore – feeds on small crustaceans and zooplankton; accepts frozen mysis, brine, and finely chopped seafood.

Care Level: Moderate to Difficult – requires a deep sand bed and stable water parameters.

Aggression: Peaceful – may defend burrow territory.

Captive-Bred Available: ❌ No

Notes:

The Blue Dot Jawfish is a striking burrow-dwelling species, instantly recognisable by its pale body covered in bright blue spots. Native to the Gulf of California, it requires a deep sand bed mixed with rubble to create stable burrows. This species is prone to jumping, so a tight-fitting lid is essential. Sensitive to poor water quality and rapid temperature swings, it does best in mature, stable aquariums.

Why We Like It:

With its jewel-like blue spotting and curious, alert behaviour, the Blue Dot Jawfish is a true showpiece. Watching it build and guard its burrow adds fascinating natural behaviour to the aquarium, making it a favourite among dedicated reef keepers.