addition of line...
Get a combination of Mono and Braid. Maybe 20 feet of mono on the reel, to the braid doesn't slip on the spool, then I use 20 lb braid (Equivalent of 8 lb mono in size, so casts beautifully.), and then tie a 6 foot, 20 lb mono leader with an Albright Knot, to the end of the braid.
This way you are less likely to get cut off in the mangroves.
As for lure selection... 1/8th and 1/4 oz Jig head and soft body plastics in pumpkinseed will never fail you. Other colors like White, Mullet, Chartreuse, etc also work, but seems to me pumpkinseed is the go too, especially with the chartreuse tipped tails.
Also have some top water for early morning and late evening bites.
Good luck, oh, and don't be afriad to chunk pieces of cut mullet is looking for Reds. If in Mangroves, more likely to catch Snook than reds anyways. Usually catch the reds in the flats.