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Pearly Jawfish
Jawfish

Pearly Jawfish

Opistognathus aurifrons

A Caribbean sand-dweller with a pale pearly body and a yellow head that hovers vertically over a burrow it builds itself and dives into tail-first when startled. It needs a deep sand bed — roughly 12–18 cm of mixed fine sand, shell and small rubble — because it lines the burrow walls with the coarse pieces; a thin bed means no burrow and a stressed fish. It is peaceful with everything and reef-safe, but it is a determined jumper and a very common carpet-loss, so a tight lid or full mesh screen is not optional. Keep one per tank unless the sand area is large enough to give each fish its own territory.

Temperament
Peaceful
Max size
3.9"
Min tank
30 gal
Reef-safe
Reef safe
Diet
Carnivore
Zone
Sand bed, Bottom
Keep just one per tank — two will fight.
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Tankmates

How Pearly Jawfish gets on with the rest of the reef, checked pair by pair by the same engine as the live pre-flight.

Best kept apart

A real clash — aggression, predation or a same-genus fight.

Purple TangPurple Tang (aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Diamond GobyThe diamond goby continually excavates and dumps sand, burying the jawfish's burrow, and it gets territorial about the sand it has claimed. Care guides name jawfish specifically as a tankmate to avoid.Picasso TriggerfishPicasso Triggerfish (aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Twinspot GobyBoth rework the same sand bed: the goby constantly dumps sifted sand while the jawfish needs a stable deep burrow, so each undermines the other's home. They also compete for the same sand-bed food.Royal DottybackA jawfish is shy on arrival and needs to feel safe enough to leave its burrow and feed. The royal dottyback claims a large territory and is explicitly a bad match for retiring species.Dragon WrasseDragon Wrasse has a big enough mouth to eat the much smaller Pearly Jawfish.Volitans LionfishVolitans Lionfish has a big enough mouth to eat the much smaller Pearly Jawfish.Snowflake MoraySnowflake Moray has a big enough mouth to eat the much smaller Pearly Jawfish.Zebra MorayZebra Moray has a big enough mouth to eat the much smaller Pearly Jawfish.Chainlink MorayChainlink Moray has a big enough mouth to eat the much smaller Pearly Jawfish.Golden Dwarf MorayGolden Dwarf Moray has a big enough mouth to eat the much smaller Pearly Jawfish.Rectangle TriggerfishRectangle Triggerfish (aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Clown TriggerfishClown Triggerfish (aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Miniata GrouperMiniata Grouper (aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Panther GrouperPanther Grouper (aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Six-Line SoapfishSix-Line Soapfish has a big enough mouth to eat the much smaller Pearly Jawfish.Painted FrogfishPainted Frogfish has a big enough mouth to eat the much smaller Pearly Jawfish.Dogface PufferDogface Puffer has a big enough mouth to eat the much smaller Pearly Jawfish.Porcupine PufferPorcupine Puffer has a big enough mouth to eat the much smaller Pearly Jawfish.Dusky JawfishPearly Jawfish and Dusky Jawfish are the same genus (Opistognathus) and will fight — keep only one.

Keep an eye on these

Usually fine, but worth watching in a smaller tank.

Sailfin TangSailfin Tang (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Red Coris WrasseRed Coris Wrasse (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Emperor AngelfishEmperor Angelfish (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Naso TangNaso Tang (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Scopas TangScopas Tang (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Queen AngelfishQueen Angelfish (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Blueface AngelfishBlueface Angelfish (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Gold Head Sleeper GobyConstant sand-sifting by the Valenciennea goby dumps substrate over a burrowing jawfish and competes for the same open sandbed footprint; usually tolerable in a large deep sandbed but a source of friction in tight setups.Niger TriggerfishNiger Triggerfish (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Blonde Naso TangBlonde Naso Tang (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Desjardini Sailfin TangDesjardini Sailfin Tang (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.Orange Shoulder TangOrange Shoulder Tang (semi-aggressive) is much larger than the peaceful Pearly Jawfish and may harass it.