Catching juvenile goliath grouper in the mangroves means finding deeper shoreline pockets where current hits a point, feeding baits too big for snappers like pinfish, mullet, or crabs on a jig head, and casting precisely under the bushes. These hard-pulling fish stack up with redfish, snook, and baby tarpon wherever there is clean flowing water, bait, and structure. In this How 2 Tuesday, sparked by an audience question and fresh off filming a goliath show, I break down exactly where to find them, what to feed them, and how to get them out of the roots.
Watch now: press play on the video above and follow along.
Juvenile goliath grouper, up to around 50 or 60 pounds, hold along mangrove shorelines in the same places you find redfish, snook, and baby tarpon, anywhere with enough depth, habitat, food, and clean flowing water. To find a real concentration, look for deeper pockets where the current hits a point or a hook in the shoreline like a wall. They often stack up where the tide flows straight into their face, so a spot that fires on the incoming may go dead on the outgoing as the fish relocate.
Use a bait too big for the snappers to destroy. Live shrimp gets eaten by small snappers before a grouper ever sees it, so Tom uses pinfish and mullet, sizing his pinfish trap funnel to catch baits the snappers cannot swallow. Crabs are an excellent option too, because goliath grouper constantly cough up crabs and small lobster, and a crab dodges the snapper problem entirely. If you cannot get pinfish or mullet, store-bought crabs give you a real shot.
Accuracy beats brute strength here, so Tom downsizes. On his most recent show a heavy tarpon rod could not place the bait, so he switched to a seven foot St. Croix Triumph medium-heavy, a 10 to 20 pound class rod, with 20 pound Daiwa J-Braid, a 4000 size Daiwa Certate, and a 50 pound fluorocarbon leader to a three eighths ounce jig head. That setup let him cast precisely under the bushes, which was the single biggest key to getting bites.
Because you have to cast precisely under overhanging bushes, and any weight up the line makes the rig helicopter and snag in the branches. Tom wants the weight right on the hook, either a jig head or a weight pinned over the top, so the bait flies clean and accurate. A jig head also drives a pinfish straight to the bottom where it kicks in place instead of swimming up into the roots, and a weightless mullet that swims around will tangle you in the mangrove roots fast.
Tom plays them with steady but not locked-down pressure, because mean fish pull harder the harder you fight them. When one heads back into the bushes he often lets it, since the mangroves usually do not reach the bottom and there is a clear ledge underneath with little to snag on. He palms the spool rather than relying on heavy drag, ready to free-spool if the fish wraps something, then works it back out. Plenty of anglers fish them heavy-handed and land them fine too.
It is illegal to remove goliath grouper from the water, and there is no reason to. Lip them with a glove, watch the teeth, slip the hook out, and let them go without ever lifting them. They are very hardy fish that release well, so minimizing or eliminating handling protects both the fish and you from any trouble with fish and wildlife. Best practice is simple: leave them in the water and turn them loose.
I started chasing small goliath grouper on purpose after I noticed how much my visiting anglers, especially bass fishermen from the Midwest and South, loved them. If the biggest bass you have ever caught is ten pounds, a 20 pound goliath on similar tackle is a spectacular fish that pulls far harder than a largemouth. I would see them under the bushes while fishing for baby tarpon and started figuring out how to target them. I tell that story in the episode, so watch the video above.
You can catch one anywhere a redfish or snook lives, but a real concentration is in deeper pockets where the current slams into a point or a hook in the shoreline, almost like a wall. Those spots can be on fire on an incoming tide and dead on the outgoing, because the fish relocate to wherever the water flows into their face. If you really want to learn a shoreline, mask up and snorkel it. I explain how I read these spots in the video above.
If you tie on a live shrimp, you will never catch one, because the little snappers shred it before a grouper gets a look. The whole game is feeding a bait too big for the snappers, which is why I lean on pinfish, mullet, and crabs. I even tune my pinfish trap funnel to catch exactly the right size. I break down the bait selection in the episode, so press play above.
The biggest mistake people make is going too heavy. A big tarpon rod sounds right for a 60 pound fish under cover, but most people cannot cast it accurately enough to get the bait where it needs to be. On my last show I dropped down to a seven foot medium-heavy so I could place the bait well under the bushes, and that accuracy was the key to every bite. I walk through the exact rig in the video above.
Here is the sequence I run, from finding fish to fighting them out of the roots. Accuracy and the right bait matter more than muscle.
Watch me put it all together in the video above.
Targeting juvenile goliath grouper comes down to finding the right pocket, feeding a bait the snappers cannot eat, and casting precisely under the bushes with the weight on the hook. Get those three right and you will catch a lot more of them.
Remember to leave them in the water, lip them with a glove, and turn them loose, because they are hardy and they release great. Watch the video above and follow along.
goliath grouper · mangrove shorelines · pinfish · mullet · crabs · jig head · redfish · snook · baby tarpon · snapper · St. Croix Triumph · Daiwa Certate · Daiwa J-Braid · Saltwater Experience · How 2 Tuesday
How 2 Tuesday is my weekly series where I break down one fishing skill at a time, from knots and casting to gear, tactics, and the habits that make you a better angler. Watch and listen to every How 2 Tuesday episode from Tom Rowland.
I'm Tom Rowland, a professional fishing guide based in the Florida Keys, host of the Tom Rowland Podcast, and the longtime host of the Saltwater Experience television show. On the podcast's How 2 Tuesday series I break down one practical skill or lesson at a time, from fishing technique and gear to the habits that make you a better angler, in short, focused episodes you can put to use right away.
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