Mangrove jacks prefer to live in areas with plenty of cover, such as rocky outcrops, mangrove roots, or submerged structures like wrecks or jetties.
They are most active during night, the early morning and late afternoon, so fishing during these times may increase your chances of success. They can be caught in a variety of depths, from shallow waters to deeper holes and channels.
Current flow in creeks can be your best friend, as it helps finding those back eddies where water slows down, but also a tough enemy, as your bait will no remain long in the strike zone.
Mangrove jacks are aggressive predators, and are often willing to strike at fast-moving lures or baits. They are known to be territorial, so often striking big lures even if they may not be hungry.
Mangrove jacks are known for their strong fighting abilities, a fast taper rod may help avoiding them pulling you into the structure, once hooked. They are ambush predators and opportunistic feeders and will eat a wide variety of prey, including baitfish, crabs, and shrimp. Mangrove jacks have a keen sense of smell and can be attracted to baits with strong scents, like pilchard or mullet.
Finally, mangrove jacks are highly prized among anglers for their delicious flesh, so be sure to handle them carefully and follow local regulations for catch limits and sizes.