Mangrove Jack

Mangrove Jack 

• Scientific Name: Lutjanus argentimaculatus
• Common Name: Mangrove Jack
• Adult Size: Up to 3 feet in the wild; typically smaller in captivity
• Life Expectancy: Over 20 years in the wild
• Habitat: Found in mangrove estuaries, rivers, and coastal reefs across the Indo-Pacific region

Tank Requirements

• Minimum Tank Size: 100 gallons
• Ideal Temperature: 75-82°F
• pH Range: 7.5-8.5
• Water Hardness: 8-12 dGH
• Temperament: Semi-aggressive

Diet & Nutrition

• Diet: Carnivorous; diet includes fish, crustaceans, and mollusks. In captivity, they can be fed a diet of live, frozen, or prepared foods designed for carnivorous fish.

Tank Mate Compatibility

• Compatible With:
  • Larger, robust fish that can tolerate semi-aggressive behavior
  • Avoid smaller, peaceful fish as they may be seen as prey

Breeding & Spawning

• Reproduction: Spawning occurs in the wild, typically during warmer months. Breeding in captivity is rare and requires specific conditions.

Appearance

• Distinctive Features: Mangrove Jacks have a robust, elongated body with a reddish-bronze coloration. Juveniles may have blue spots on their fins which fade as they mature.
• Note: Please note that the fish shown in the photo is only a representative of what an adult specimen would look like. The color may vary based on the age and environment of the fish you receive.

Mangrove Jacks are prized by anglers and aquarium enthusiasts for their striking appearance and dynamic behavior. They require a large, well-maintained aquarium with plenty of hiding spots and swimming space. Their semi-aggressive nature makes them best suited for experienced aquarists who can provide the appropriate care and tank mates.