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Dusky Jawfish
Jawfish

Dusky Jawfish

Opistognathus whitehursti

The dusky jawfish is a compact, mottled brown-and-black Caribbean burrower that is inexpensive, widely available and one of the hardier jawfish for a first attempt at the group. It is more territorial towards its own kind than the closely related pearly jawfish, so stick to one per tank unless the sand area is large enough for separate burrows. It needs a deep mixed sand-and-rubble bed to construct its burrow, a tight-fitting lid or mesh top since it jumps readily, and a diet of small meaty foods (mysis, brine shrimp, chopped seafood) offered a few times a day. It is reef-safe with corals but should be kept with caution around very small ornamental shrimp, which it may treat as food.

Temperament
Peaceful
Max size
5.5"
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 Dusky 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 Dusky Jawfish and may harass it.Picasso TriggerfishPicasso Triggerfish (aggressive) is much larger than the peaceful Dusky Jawfish and may harass it.Pearly JawfishDusky Jawfish and Pearly Jawfish are the same genus (Opistognathus) and will fight — keep only one.Volitans LionfishVolitans Lionfish has a big enough mouth to eat the much smaller Dusky Jawfish.Snowflake MoraySnowflake Moray has a big enough mouth to eat the much smaller Dusky Jawfish.Zebra MorayZebra Moray has a big enough mouth to eat the much smaller Dusky Jawfish.Chainlink MorayChainlink Moray has a big enough mouth to eat the much smaller Dusky Jawfish.Rectangle TriggerfishRectangle Triggerfish (aggressive) is much larger than the peaceful Dusky Jawfish and may harass it.Clown TriggerfishClown Triggerfish (aggressive) is much larger than the peaceful Dusky Jawfish and may harass it.Miniata GrouperMiniata Grouper (aggressive) is much larger than the peaceful Dusky Jawfish and may harass it.Panther GrouperPanther Grouper (aggressive) is much larger than the peaceful Dusky Jawfish and may harass it.Gold-specs JawfishDusky Jawfish and Gold-specs Jawfish are the same genus (Opistognathus) and will fight — keep only one.Lunare WrasseLunare Wrasse (aggressive) is much larger than the peaceful Dusky Jawfish and may harass it.Spanish HogfishSpanish Hogfish has a big enough mouth to eat the much smaller Dusky Jawfish.