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Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.
When it comes to drawing heavy feeding fish into your swim and holding them there, few ingredients match the pure pulling power of fish oil and natural hemp. The Dynamite Baits Big Fish Marine Halibut & Hemp Groundbait combines two of the most successful fish attractors of all time—premium Marine Halibut and legendary Frenzied Hemp—into one high-value, hard-hitting 1.8kg bag.
This rich, dark groundbait is packed with quality ingredients, including heavy ratios of crushed hempseed and crushed Marine Halibut pellets. Once mixed, it releases a potent combination of heavy fish oils and natural hemp attractants that travel rapidly through the water column. It is an incredibly versatile mix designed to create a heavy bed of high-protein attraction on the deck without overfeeding the fish, making it a reliable choice for big-fish anglers nationwide.
Weight: 1.8kg (High-value bulk bag)
Core Ingredients: Crushed Frenzied Hempseed, crushed Marine Halibut Pellets, high-protein fishmeals, and amino acids
Texture: Medium-coarse (highly adaptable depending on water addition)
Oil Content: High (packed with natural hemp oils and marine fish oils)
Target Species: Barbel, Carp, Specimen Chub, Bream, and Tench
Application: Feeder fishing, method feeders, balling-in, spod mixes, and stick mixes
River Barbel & Chub Feeder Fishing: The absolute number-one choice for big river venues. The heavy, oily nature of the mix helps it hold the river bed in strong currents, leaking a powerful scent trail downstream that guides barbel straight to your hook bait.
Carp Method Feeder & Stick Mixes: Excellent for packing around a Method feeder or compressing into PVA mesh bags for carp fishing. The crushed hemp particles create a active, fizzing bed of bait that breaks down cleanly on the lake bed.
Open-End Feeder Bream Tactics: Ideal for plugging the ends of open-end cage feeders when caching large payloads of micro pellets, dead maggots, or chopped worm into deep stillwaters and reservoirs.
Pro Tip from the Gerry’s Fishing Team
Because this groundbait contains a large amount of real crushed pellets and hemp, it is quite an absorbent mix. To get the perfect texture for river or feeder work, we highly recommend a two-stage mixing process.
Empty your groundbait into a large mixing bowl, add water gradually while mixing vigorously, and leave it to stand for 10 to 15 minutes. This gives the crushed ingredients time to fully absorb the moisture. After standing, pass the mix through a groundbait riddle. This breaks up any heavy lumps and injects air into the groundbait, resulting in a perfectly fluffy, active mix that exits your feeder cleanly every single time on the river bed.
Can I use this groundbait in a PVA bag?
Yes, but you must ensure the groundbait is mixed “dry” using oil-based liquids (like Dynamite’s liquid attractants or hemp oil) rather than water. If you mix it with water, it will dissolve your PVA bag instantly.
Is this mix suitable for summer or winter fishing?
While it works year-round, its performance absolutely skyrockets during the warmer summer and autumn months. The high oil content from the halibut pellets and hemp leaks aggressively in warm water temperatures, making it devastatingly effective when river barbel and carp are feeding hard.
Does it hold together well in deep or fast-flowing rivers?
Yes. By adding slightly more water during the mixing stage and compressing it firmly, you can create a sticky, heavy mix that will easily reach the bottom of deep or fast-flowing river glides before breaking down.
Can I add extra loose offerings to this groundbait?
Absolutely. This mix is the perfect carrier for extra loose feed. It blends brilliantly with 2mm–4mm Marine Halibut pellets, whole hempseed, sweetcorn, chopped worms, or dead maggots to create an even more substantial feeding area.
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.




Penn Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
Wader Waist Guide
Small (28″-30″)
Medium (30″-33″)
Large (34″-37″)
XLarge (37″-39″)
XXLarge (39″-42″)
3XLarge (42″-45″)
Kinetic/Westin Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Grundens Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Vass Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trakker Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Korda Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Guy Cotten Chest Size Guide
Small (86 – 94cm)
Medium (94 – 102cm)
Large (102 – 110cm)
XLarge (110 – 124cm)
XXLarge (124 – 134cm)
3XLarge (134 – 154cm)
Fox Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Nash Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Aqua Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Guru Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Preston Chest Innovations Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trouser Waist Guide (Inches)
Small – 28″ – 32″
Medium 32″ – 34″
Large – 34″ – 36″
X-Large 36″ – 38″
XX-Large – 38″ – 42″
XXX-Large 42″ – 46″
XXXX-Large 46″ – 52″