Saltcorner
By Bob Goemans
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Myripristis

Myripristis jacobus

Cuvier, 1829

Blackbar Soldierfish

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

Range: Western Atlantic Ocean: North Carolina to the Bahamas, also northern Gulf of Mexico, and the Caribbean to Brazil.

Size: 8 inches (20 cm)

Natural Environment: Inhabits caves and crevices on both shallow and deeper offshore reefs and can usually be found at depths between 6 - 100 feet (2 - 30 m) during daylight hours, and feeds at night mainly on zooplankton.

General Husbandry: Commonly collected for the trade. This large eye species has a reddist body with a narrow black verical bar behind the gills.

Best maintained in aquariums with several caves/hiding areas large enough to house the adult-sized specimen, as those in this family grow to adulthood quite fast. The aquarium should also be dimly lit, as this is a nocturnal species, preferring to hide throughout daytime hours and feed at night. If maintained in a brightly lit aquarium, i.e., reef aquarium, it should also have sufficient caves as noted above, but will be far less visible in daylight hours. Even though quite docile and peaceful, tankmates should be large enough so as not to be eaten.

Requires a meaty diet such as enriched chopped fish or shrimp flesh, mysis, frozen brine shrimp, and/or frozen carnivore foods with one or two feedings per day.

May be difficult to feed in the early days in the aquarium due to its nocturnal feeding habits, and if so, live foods, e.g., live enriched brine shrimp, grass shrimp, black worms (Lumbriculus variegatus), baby mollies and/or guppies should be offered. Over time, it will learn to accept frozen foods like mysis, krill and brine shrimp more readily when offered to others in the aquarium.

Taxonomy:

    Order: Beryciformes

    Suborder: Holocentroidei

    Family: Holocentridae

    Genus: Myripristis

FYI: Best maintained in small groups if the aquarium is large enough.

Can become bullies if their quarters are too small.

Will eat ornamental shrimp.

Sensitive to tapping on aquarium side panels.

Should not be captured with a net, as their large eye can easily be damaged. Use a proper size container.

Experience Level: Intermediate

Temperament: Peaceful

Diet: Carnivore

Coral Safe: Yes

Fish Safe: With caution

Invertebrate Safe: With caution

Acclimation Time: 30 minutes+

Aquarium Environment: Reef or fish only aquarium

Tankmates: Peaceful

Minimum Tank Size: 75 gallons

Temperature Range: 72 - 78°F (22 – 26°C)

Specific Gravity: 1.020 - 1.026

pH: 8.0 - 8.5

 Myripristis jacobus (Blackbar Soldierfish)
Photo © Peter Wirtz
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