Jackknife; Atl. - Equeus lanceolatus

The **Jackknife Fish** is a fascinating species with a distinctive shape. Its elongated fins give it a jackknife-like appearance, which is how it got its name. This fish is primarily white with bold black vertical stripes.

Reaching up to 10 inches in length, **Jackknife Fish** require a minimum tank size of 120 gallons. They are peaceful and generally coexist well with other fish and most corals. However, they tend to consume invertebrates, making them unsuitable for reef aquariums.

In larger, fish-only tanks, the **Jackknife Fish** can be a stunning addition, especially when kept in small groups. If you plan to introduce multiple **Jackknife Fish**, add them simultaneously to minimize aggression. They thrive in environments with ample live rock and sand, where they forage for small invertebrates between feedings. Being peaceful, they may retreat to the rockwork if threatened.

As carnivores, **Jackknife Fish** need a diet rich in meaty foods. Mysis and brine shrimp, high-quality frozen foods, and small pieces of fresh seafood will keep them healthy and content.

If you have questions about whether the **Jackknife Fish** is right for your aquarium, feel free to contact us anytime.

• Tank Capacity: 120 Gallons
• Temperament: Peaceful
• Max Length: 10 inches
• Color: White, Black
• Diet: Carnivorous
• Habitat: Caribbean, Atlantic Ocean
• Reef Suitability: No
• Skill Level: Intermediate
• Water Parameters: 74-80?F, SG 1.020-1.027, pH 7.9-8.5
• Alternate Names: Jack-knifefish

Size Categories: Tiny: Up to 2", Small: Over 2-2.5", Small/Medium: Over 2.5-3.5", Medium: Over 3.5-4.5", Medium/Large: Over 4.5-5.5", Large: Over 5.5-6.5", Extra Large: Over 6.5-7.5", Extra Extra Large: Over 7.5-8.5", Show Size: Over 8.5-10.5", Jumbo: Over 10.5"