Trolling with plugs is one of the most efficient methods to target groupers, especially in the Florida Keys. In this blog you will find the best grouper trolling tips and secrets. I still remember my first Florida Keys black grouper caught while trolling a plug. It happened by accident. As I set up my trolling spread for a wahoo trip, my short corner trolling plug rod clicker started screaming. Honestly, I thought I snagged the bottom or derelict lobster trap line. That fish hit that plug so hard that it felt like the whole boat shook. To my surprise, it was a 30-pound black grouper. So rather than continue out to target wahoo, I decided to trace my trolling path back over the spot, and sure enough, I hooked another 20 lb. black grouper. All this unfolded within the first 30 minutes of what was supposed to be a wahoo-focused charter.

Black Grouper
Traditionally, I prefer anchoring and using stand-up gear to catch groupers in the Florida Keys because my clients like that over-trolling. However, with the growing shark population along the reef, I’ve had to adjust my approach to ensure we’re bringing home more “whole-size” groupers rather than “half-eaten” ones. Trolling for groupers has become an invaluable strategy, especially when sharks are particularly aggressive. Anchoring and bottom fishing can often lead to frustrating encounters with sharks, which quickly grab the bait for groupers or even steal your catch right off the hook. By trolling for groupers with plugs, I can reduce these unwanted interactions with sharks, giving us a better chance of landing the groupers we’re after.
Trolling for groupers helps us avoid losing groupers to shark. It’s about being adaptable and using effective techniques to ensure success on every trip. In this blog, I’ll share my grouper trolling tips, covering everything from maintaining your fishing gear to selecting the top trolling plugs and some innovative tricks I’ve used to increase my catch rates, which might work for you, too. I also share how SatFish comes into play, transforming your grouper trolling fishing trips with its cutting-edge technology. SatFish’s advanced tools provide real-time data on ocean conditions, like water temperature and currents, helping you pinpoint the perfect spots to troll for grouper.
Grouper Spawning
Photoperiod is the natural cycle of light and darkness affecting fish behavior. This cycle influences when they feed, migrate, and spawn. While the most significant changes happen in spring and fall, fish can sense light shifts all year round. Fish like snappers, groupers, and amberjacks are susceptible to these light changes. They use their eyes to notice the shifts and send signals to their brain, which controls their migration, feeding, and spawning patterns. The fall photoperiod is vital for black grouper. As days get shorter, these signals tell them it’s time to move into spawn, making it a great time to target grouper with trolling plugs. Understanding photoperiod can improve the success of new anglers in fishing. Planning your fishing trips around these periods, especially in the two weeks leading up to the November full moon, can significantly boost your chances of catching black grouper. Pair that with good weather, like a stalled cold front, and you’ve got the recipe for excellent grouper fishing in the Florida Keys. If you really want to get dialed in the grouper spawn then I suggest you buy my Solunar and Tide Course Fishing Trip Planning Secrets , I reveal a few secrets. Those that think they know, really have no clue and miss out on hot grouper bites.

Grouper Trolling
Selecting Trolling Plugs
Opt for trolling plugs that mimic the size of local baitfish, typically ranging from 4 to 12 inches. This size is appeals to both mutton snappers and groupers. Select trolling plugs that float, not sink. Groupers eat just like wahoo. Once a grouper bites on a floating plug, it’s crucial to slow down your trolling speed slightly. Slowing down keeps your second plug in a good position—floating and swimming naturally at a slower pace will get the second grouper to bite, as they usually swim in packs. Maintaining the second plug in the water after a hook-up increases your chances of landing another grouper. This method capitalizes on groupers’ schooling behavior and competitive nature, often resulting in a double.
Use natural colors like silver, gold, green, or blue that resemble the local fish species. Green and gold mimics the speedo, goggle eye, and ballyhoo. Bright colors can also be effective in murky waters or low-light conditions. Orange and pink are the perfect colors for grouper trolling. Below is one my favorite grouper trolling lure patterns. Click here to order through my Amazon affiliate link.

The Best Grouper Trolling Lure Color
I prefer the green color trolling plugs. Nomad and Halco lures can significantly boost success rates. These lures, known for their effectiveness in mimicking natural prey, are essential for anglers aiming to maximize their grouper trolling expeditions. Click here to purchase the Nomad Trolling lure used to catch that black grouper.

Nomad Trolling Plugs
How to Use a Copic Markers to Fix Chip Paint and Scratches on Nomad Trolling Plugs
I’ve always believed in maintaining my trolling plugs for wahoo and grouper fishing, especially regarding my higher ticket Nomad trolling plugs. The Nomad trolling plugs are known for their exceptional quality and effectiveness, but let’s face it—they come with a hefty price tag. So, when I noticed chips and scratches appearing after numerous fishing trips, I knew I had to find a way to preserve their appearance without breaking the bank. I started painting lure heads several years ago. That’s when I discovered the magic of Copic markers. With their wide range of colors, these versatile markers offered a simple, cost-effective solution for touching up my trolling plugs. The process is straightforward and incredibly satisfying, turning what could be a costly problem into a creative, practical, and most importantly, cost-effective DIY project. I start by selecting the right Copic marker color to match the original paint of my plug. With so many shades available, I can easily find a close match. Before applying the marker, I ensure the lure is clean and dry, ensuring the ink adheres appropriately.
I gently cover the chips and scratches using smooth, even strokes, watching as the color restores the plug to its former glory. I sometimes blend multiple markers for areas with complex color patterns, achieving a seamless look nearly indistinguishable from the original. I let the Copic marker ink dry thoroughly. I then apply a clear, waterproof sealant over the touched-up areas to ensure the repairs last. This sealant is not just any sealant, it’s a durable, long-lasting one that protects the fresh color and reinforces the plug against future wear and tear. This DIY approach has extended the life of my Nomad trolling plugs. I have even designed a few new colors that work very well for wahoo and grouper. There’s something deeply satisfying about restoring trolling plugs and giving them a new look.
Here’s a straightforward guide and few extra tips on how to breathe new life into your favorite grouper trolling plugs using Copic markers.
- Gather Your Materials:
- Clean cloth or paper towel.
- Mild soap and water.
- Clear sealant (optional for added durability).
- Prepare the Lure:
- Clean the lure thoroughly with mild soap and water to remove dirt or residue. This ensures the marker adheres appropriately.
- Dry the lure completely using a clean cloth or paper towel.
- Select the Right Marker Color:
- Choose a Copic marker that closely matches the original color of your lure.
- To ensure color accuracy, test the marker on a small, inconspicuous area first.
- Apply the Marker:
- Gently apply the marker to the chipped or scratched areas of the lure.
- Use smooth, even strokes to cover the imperfections. Avoid over-applying, as this can result in an uneven finish.
- If needed, blend multiple marker colors to achieve a perfect match.
- Allow to Dry:
- Let the marker ink dry completely before handling the lure. It usually takes a few minutes. I prefer to dry the marker application with a heat gun for a few seconds to help set the marker pigment coloration.
- Seal the Repair (Optional):
- For enhanced durability, apply a clear sealant over the repaired areas. This will protect the marker and keep your lure looking fresh for longer.
- Follow the sealant’s instructions for application and drying times.
- I like to spray a coat of Krylon Cover Max flat clear to lock in the Copic marker colors. This step helps prevent the markers from running.
- Let the clear coat dry for 24 hours.
With these simple steps, you can quickly restore the look of your fishing lures using Copic markers. This practical and effective solution gives your lures a new lease on life.
Verify the Depth of the Trolling Plug at Speed Over the Ground
You play a crucial role in the preventive maintenance calibration process of your trolling plugs. By verifying the depth of your trolling plugs at speed over the ground, you set yourself up for a successful and enjoyable grouper trolling season. Starting the season with verified and properly tuned plugs ensures confidence levels that your trolling lures are working the way they are supposed to work, letting you focus on dialing in on catching groupers rather than adjusting gear on the water. Remember, the trolling plug has to run right, or it will not catch fish.

Tips Verify Grouper Trolling Plug Depth
Use a Line Counter
- Begin by calibrating your line counter and ensuring it accurately measures the amount of line let out. This accuracy is crucial for determining how deep your plug is diving. I have been using this line counter for several years now. It works great.
Select a Test Location
- Test your plugs in a location with a known depth and a sandy bottom—controlled environment to gauge performance.
Deploy the Plug
- Let out your trolling plug using the line counter to monitor exactly how much line is released. Begin with a modest amount and gradually increase it to reach the desired depth.
Adjust Trolling Speed
- Ensure your trolling plug maintains the desired depth without dragging the bottom; adjusting your speed based on real-time conditions is essential. Aim for a consistent speed over the ground to see how it impacts depth. For grouper trolling, I prefer a speed of 4-6 mph. I focus on calibrating my plugs at this speed while trolling down the sea. This practice helps keep the plugs at the correct depth, increasing my chances of a successful catch.
Fine-Tune and Record
- Adjust the plug’s tuning if it’s not reaching the desired depth. Record the effective line length and speed settings for easy reference during fishing trips. This step can save time and effort when you’re ready to catch some grouper.
Side Performance of Trolling Plugs
- The last step is calibrating plugs for side performance; it’s essential to recognize that some trolling plugs may perform better off the starboard side while others excel on the port side. Conditions change daily, and so will the action on some trolling plugs based on the day’s conditions, including water currents, wind direction, and the movement of your boat. For grouper trolling success, it’s crucial to test your plugs on both the starboard and port sides. Doing so lets you determine which side offers the best performance under current conditions, ensuring your plugs swim true and maintain the desired depth.
Factors Influencing Side Performance
- Water Currents: Strong currents can push against your plugs differently, affecting their depth and action. Testing plugs on both sides can help you find the optimal setup.
- Wind Direction: Wind can alter the boat’s path and the plugs’ behavior, making one side more favorable.
- Boat Movement: The natural sway and tilt of the ship enhance the performance of plugs on one side over the other.
Recognizing and Fixing Trolling Plug Issues
Ensuring your trolling plug runs straight is crucial for effective trolling, as it maintains the desired depth and enhances the lure’s ability to attract groupers. New plugs are especially more so than old plugs and should be checked for alignment and calibrated before use. I remove all my hooks from the previous season and replace them with a fresh set of hooks and split rings every season. Replace these components to ensure reliability and effectiveness. I use BKK Raptor Trebles hooks that are sized appropriately for the trolling plug.
Here’s a step-by-step guide to adjusting a trolling plug eye:
- Identify the Problem: First, observe the plug in the water. If it veers off to one side, it needs adjustment. Watch for any deviation from its intended path, which indicates that the eye needs to be aligned.
- Secure the Plug: Gently grip the trolling plug’s eye with pliers. Make sure you have a firm hold, but avoid applying too much pressure, which could damage the lure.
- Adjust the Eye: Make minor, incremental adjustments to the eye. If the plug pulls to the right, slightly bend the eye to the left and vice versa. It’s crucial to make only minor tweaks to avoid over-correction.
- Test the Plug: After each adjustment, test the plug in the water to see if it runs straight. Repeat the process, making slight corrections until the plug tracks correctly.
- Benefits of Proper Alignment: A properly aligned plug ensures it runs at the optimal depth and presents a natural action to fish, increasing the likelihood of attracting strikes. Maintaining a straight-running plug is essential for maximizing your trolling effectiveness and fishing success.
The Set-Up I Use for Grouper Trolling
When grouper trolling, some anglers favor heavier line setups to ensure they can handle the tremendous power of giant black and gag groupers. However, I prefer a more balanced setup that offers sensitivity and stealth. Utilizing a braided line between 30-60 lb. provides exceptional sensitivity, allowing me to detect even the slightest bite while maintaining the strength necessary to catch a big black grouper. Pairing this with a 60-80 lb. fluorocarbon leader, typically 3-5 feet long, further enhances the setup by reducing line visibility in clear waters, making it less detectable to cautious groupers.
One of the critical considerations in this setup is the leader length, as it plays a significant role in drag and lure action. While a longer leader can increase stealth, it also adds drag, which may inadvertently alter the lure’s position in the water and its action. By carefully managing leader length, the setup maintains the lure in the optimal strike zone, ensuring it remains enticing and effective. This balanced approach maximizes stealth and efficiency and increases the chances of a successful grouper catch without compromising on power or control.
Grouper Rods
Grouper Trolling Tips and Techniques
Grouper Trolling Speed
When trolling for grouper, it’s best to maintain a speed of 2-5 mph. This speed helps the plugs achieve the right action and depth, mimicking natural prey movement. If you calibrate your plugs correctly, you will know precisely at what depths they will run best. Some days, the grouper may prefer the plug to be trolled fast, while on other days, they may prefer it to be trolled slow. Anyone who tells you differently probably hasn’t fished enough or only fishes on days when the fish are not picky.
Grouper Trolling Depth
Depending on the plug’s design, adjust your trolling speed to keep the plug in the strike zone. Troll the reef’s edge in 20 ft to 50 ft water—black and red groupers like this depth in the Florida Keys.
Grouper Trolling Patterns
Troll in a very tight zigzag, not too much of, but just enough of a zigzag pattern to cover more ground and simulate the erratic movement of injured prey, which can trigger predator strikes. Plan slight turns to avoid snagging your rig on the reef. If a sharp turn is necessary, reel in the trolling plug; honestly, it is worth it so you can avoid a tangle or rocking up on the bottom.
I have found that black groupers prefer trolling “downseas” or “downhill” . The boat’s motion with the waves creates a more lifelike and natural lure movement, making it more enticing to predators like groupers. Trolling down the waves helps maintain a more consistent lure depth. The smoother ride prevents the lure from bouncing too much, keeping it in the strike zone longer. Moving with the waves often requires less engine power, resulting in reduced noise and vibrations. This quieter approach is less likely to spook fish, increasing your chances of a successful catch.
Finding Groupers Using Visual Cues
When you’re out on the water, one of the best strategies to enhance your fishing success is to watch birds and bait sprays along the reef. These natural indicators indicate activity, suggesting that groupers and packs of mutton snappers are in the area, often chasing schools of ballyhoo, especially during fall bait migration in the Florida Keys. Focusing on these hotspots can significantly increase your chances of landing a catch. Observing the behavior of birds, which usually hover over these feeding frenzies, can guide you to the action and save time searching for the perfect grouper trolling spot.

Grouper Trolling
Stay Alert and Communicate Trolling Depth
Effective communication between the boat driver and the angler is crucial when trolling for grouper, especially as the depth changes. The captain should continuously monitor the depth using a depth finder. This helps anticipate changes in the underwater terrain, such as approaching shallower areas or deeper drop-offs. As the depth changes, the captain needs to communicate with the angler. For instance, if the depth is getting shallower, the captain should instruct the angler to reel up to prevent the lure from snagging on the bottom. Conversely, if the depth increases, the captain might advise returning the lure to ensure it remains in the optimal strike zone for groupers. This real-time communication allows for quick adjustments, maximizing the chances of a successful catch while minimizing the risk of losing lures to snags. You’re out on the water, trolling along a 20-50-foot ledge known for its grouper population. The water is clear, and you’re using a depth finder to keep track of the underwater terrain.
The example below perfectly illustrates the importance of communication and teamwork in successful group trolling. The captain and angler work together to adjust their tactics based on changing depths, ensuring the lure stays in the optimal position to attract groupers. This dynamic approach helps prevent snags and maximizes the chances of a catch by keeping the lure close to the bottom, where groupers are likely to be. By maintaining communication, you will catch more groupers.
Boat Driver (Captain): “Alright, we’re getting shallow. Depth is dropping to 15 feet. Reel up a bit to keep the lure from snagging.”
Angler: “Got it, reeling up now.”
As you continue along the ledge, the depth starts to increase again.
Boat Driver (Captain): “Depth is back to 20 feet. You can set the lure back down to get it closer to the bottom.”
Angler: “Setting it back down. Thanks for the heads-up.”
Additional Tips for Grouper Trolling
Using In-Line Trolling Leads
When targeting groupers with a trolling plug, incorporating an in-line weight into your setup can significantly enhance your fishing success. The primary benefit of using an in-line weight is its ability to help your lure achieve and maintain the desired depth, ensuring it remains stable and effective throughout the trolling process. To utilize this technique, attach the in-line weight directly to your main fishing line, positioning it at a point that allows the trolling plug to reach the optimal depth. By keeping the lure within the strike zone, this method not only increases your chances of attracting these elusive fish but also enhances your ability to hook them successfully. This strategic approach ensures that your lure mimics natural prey movements, making it irresistible to groupers and boosting your overall catch rate.
When facing rough weather conditions, using in-line leads for dead ballyhoo and trolling plugs can be a game-changer for getting your baits deep and maintaining control. In-line leads help keep the bait at the desired depth by counteracting the effects of waves and line drag, which are more pronounced when the sea is choppy. To set up, attach the in-line leads to your rig securely, and adjust the weight based on the current sea conditions—heavier weights for rougher waters to ensure your bait stays submerged. Combining trolling plugs with in-line leads provides a reliable way to maintain a steady depth, as the plugs help stabilize bait presentation. This setup not only enhances the lure’s natural action but also ensures that your bait remains in the strike zone, even when the line tends to grab the waves. By using this technique, you can improve your chances of a successful catch, regardless of the challenging weather.
I prefer using bridle weights as an efficient alternative to traditional planers for trolling groupers, ensuring my baits reach the desired depths without the hassle. This setup involves rigging the bridle weight on a sturdy 480lb stainless cable equipped with brass snaps to facilitate quick connection and disconnection from the harness. This inline bridle system offers a significant advantage: it allows me to fight the fish to the boat, eliminating the need to handline several feet of leader, which can be cumbersome and time-consuming. Additionally, the availability of wahoo trolling weights, ranging from 16 to 64 ounces with pre-attached clips, provides flexibility in adjusting to different fishing conditions. This setup streamlines the fishing process and enhances my overall trolling efficiency and success. Click here to purchase a this set-up from the Tackle Room.
Enhance your trolling strategy by setting up a staggered system that utilizes a 32oz cigar sinker and a 26oz or 24oz trolling lead. This method not only covers different depths but also extends your reach across the water column. Start by attaching the 32oz cigar sinker to one rod, designed to troll closer to the boat. Securely fasten the sinker using strong, reliable knots to ensure stability during trolling. This closer setup targets grouper that are nearer to the boat and responds quickly to changes in speed or direction.
For the second rod, attach a 26oz or 24oz trolling lead. Position this line farther back, using a similar secure knotting technique, allowing it to delve into deeper waters. This staggered setup is strategic, as it diversifies your bait presentation, appealing to fish at various depths and distances. By presenting baits at different levels, you increase your chances of attracting a wider range of fish species like big mutton snappers.
Setting inline trolling leads for grouper can be a process, but mastering it greatly enhances your grouper trolling fishing success. Begin by gradually letting out the line, ensuring you maintain a steady grip and a sharp focus on the trolling lead’s descent. Observing the line angle carefully is crucial—shifts to a more vertical position signal that you’re approaching the ocean floor. Stay alert to the feel of the line, noting any sudden slackness or a distinct stop, both of which typically indicate the lead has reached the seabed. To perfect this technique, adjust your boat’s speed for a controlled descent, reducing the risk of tangling lines. Once you’re confident that your spread is correct, proceed with trolling for grouper, knowing your setup is optimized for reaching those giant black groupers. This careful preparation can make all the difference in landing a successful catch.
Using Old Salty Planers
In-line planers are an essential tool for grouper fishing, providing a straightforward method to achieve the optimal depth for grouper trolling lures. By attaching an inline Old Salty planer 4-6 to your fishing line, you can effectively control how deep your grouper lure travels, allowing it to reach the where groupers are typically found.

The planer works by diving at a set angle as the line is trolled, maintaining a consistent depth that ensures your lure stays within the strike zone. This depth control is crucial for presenting your lure naturally with a bonito strip or rigged ballyhoo and enticing groupers to strike. I recommending using a Gulf Stream Lure Seawitch
Setting Up For Grouper Fishing with Planers
As mentioned above, Grouper trolling with planers hinges on working with your boat driver. Communication is paramount to maintaining direction and avoiding line tangles. Also, calibrate each planer, just like you calibrated your trolling plugs, so you know how deep the planer will run at speed over the ground so you do not snag the bottom.
Below are the basic techniques that will help you get started with planer fishing for groupers.
Preparing Your Wahoo Planer Gear
- Long Planer Rod Setup:
- Set the long leader rod with a smaller number 2, 3, or 4 planer. I prefer to set this rod further from the boat, between 190 and 300 feet.
Communication with Your Driver
- Instruct your driver to maintain a steady speed of 4 to 6 mph in a straight line while you deploy your lines.
- Ensure ongoing communication to keep the boat’s trajectory steady and avoid line interference. (see above)
Deploying the Long Planer Rod
- Start by releasing the line slowly, ensuring no tangles as you reach the 100-yard mark. I highly suggest using a pre-marked line or using a line counter. While spooling the line, I recommend marking it every 50-100 feet.
- Engage the planer by introducing slack in the line and pulling back forcefully to set it. A slight bend in the rod indicates successful engagement.
Deploying the Short Planer Rod
- Once the long planer is out, have your driver make a slow, gradual turn in the opposite direction to the long line to prevent overlap.
- Release the line slowly, keeping it untangled.
- Engage the planer like the long one—gently pulling back on the rod until the planer locks in place.
Swimming Ballyhoo Secrets that Catch More Wahoo and Black Groupers
To further elevate your fishing game, explore my new Ballyhoo 3-Way course,(click here to purchase) which unveils more fishing secrets and techniques that complement the use of inline planers. This course provides additional insights into effective fishing strategies, making it an invaluable resource for anglers aiming to enhance their wahoo and black grouper trolling skills. Additionally, consider joining the Good Karma Rigging Crew 2.0 for even more tips and insights, ensuring every trip is a successful adventure.
Using SatFish for Grouper Trolling
To elevate your grouper trolling game, harnessing the full potential of SatFish’s advanced tools is indispensable. SatFish SST charts are invaluable for locating temperature breaks, key zones where groupers tend to spawn and feed, making them ideal for trolling. Complementing this, chlorophyll maps highlight areas rich in plankton, drawing in baitfish and consequently attracting predatory species like the Florida Keys black grouper. Additionally, bathymetry data unveils the underwater landscape, pinpointing ledges, drop-offs, and wrecks—prime habitats for groupers looking to ambush prey. By leveraging these comprehensive tools and adapting techniques from wahoo fishing, you can meticulously plan your routes, stay agile amid changing conditions, and significantly boost your success rate in landing big black groupers
As SatFish has proven indispensable for me in wahoo fishing, it can equally transform your approach to grouper trolling. Dive deeper into my methods by reading the detailed blog on the SatFish blog page, titled “How to Catch Groupers in the Florida Keys Using SatFish.” Don’t forget to use the code ‘goodkarma’ at checkout to enjoy a $20 discount.
Good Karma Sportfishing Educational Resources for Grouper Fishing
Conclusion
While this blog provides a solid foundation for trolling grouper, there’s still a vast sea of knowledge waiting to be explored. Each grouper fishing trip is an opportunity to learn and refine your grouper trolling techniques, offering fresh insights and challenges. By embracing the basics outlined here and applying them on the water, you can steadily build your confidence. The excitement of hooking a big black grouper on the troll and the joy of mastering a new skill make every effort rewarding. Remember my saying: anytime you are fishing, it’s all good! So, keep learning, keep grouper fishing, and enjoy the journey as you discover more about this awesome sport.
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