Jack Knifefish

(Equetus lanceolatus)

Drumfish should be added to very large well established aquariums with wide open swim space. Most home aquariums are too small for adult Drumfish. Juveniles can be added to aquariums with other peaceful tank mates however, plans should be made to transfer to very large aquarium when the fish outgrows its aquarium. These timid, shy fish are often difficult to start eating in the aquarium. If not eating try offering live fortified Brine or Glass/Grass shrimp several times daily. If other more aggressive fish reside in the aquarium Drumfish can be out competed for food and may not receive proper nutrition. Juveniles and adults may have slightly color differences.

The Jack Knifefish are also known as Ribbonfish. Occasionally seen in the aquarium trade. Jack Knifefish are quite unique with juvenile and adult color differences. Juveniles are attractive with their white body and black body stripes. Adults have similar stripes but have an overall silver body color and smaller dorsal and tail fins. They can grow to 10".

We recommend a minimum aquarium size of 100 gallons or larger for this species.

Water conditions: Salinity 1.020 - 1.025, Temp (F) 72 - 78, pH 8.1 - 8.4, Alkalinity 8 - 12 dKH

  • Care: CareModerateModerate CareDifficultDifficult
  • Behavior: BehaviorSocialSocial
  • Diet: DietFrozen FoodFrozen Food DietLive FoodLive Food
  • Habitat: HabitatReefReef HabitatSand FlatSand Flat
  • Light: LightMediumMedium