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Jackknife Fish
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Jackknife Fish

Eques lanceolatus

The Jackknife Fish originating from the Caribbean and is an interestingly shaped fish, with long dorsal and caudal fins. The formation of these two fins resemble a Jackknife, hence its common name. These fish are silver in color with a black barred pattern. Although they are not reef-safe, they are
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Compatibility at a Glance

~Reef compatible with caution — monitor closely
✗Not coral compatible — avoid with coral
✓Invertebrates compatible — can be kept with invertebrates

Jackknife Fish is reef safe with caution — most individuals behave in reef tanks, but some may nip at corals or bother invertebrates. Keep well fed and watch closely.

Compatibility

~ Reef Compatible (with caution)✗ Coral Compatible✓ Invertebrate Compatible

Care Parameters

Type:
fish
Aggression:
peaceful
Swimming Zone:
Surface
Midwater
Bottom
bottom
Minimum Tank:
125 gallons
Schooling:
No
Diet:
carnivore
Safety:
~Reef (caution)
✗Coral
✓Invert

Compatibility with Popular Tankmates

Verdicts from our compatibility engine, assuming a typical 90-gallon reef tank. How our engine works →

Tank Compatibility