Thailand is one of the most extraordinary freshwater fishing destinations on earth — and the species list is the reason why. Nowhere else in the world can you walk up to a lake and realistically target an Arapaima the size of a man, a Giant Mekong Catfish that could fill a bathtub, a hard-charging Amazon Redtail Catfish, and a surface-smashing Giant Snakehead all in the same day. Bangkok's fishing parks and wild reservoirs hold an incredible mix of native Thai giants and exotic imported species that draw serious anglers from every corner of the globe. Whether you have one day or one week, a target species in mind or just an appetite for something extraordinary — Thailand will deliver. Here's what's waiting for you.
The Best Fishing Day of Your Thailand Trip
If you've ever wanted to catch a fish that looks like it belongs in the Jurassic period, the Alligator Gar is your fish. With its long, armour-plated body, prehistoric snout, and double row of razor-sharp teeth, this is one of the most visually striking freshwater fish on the planet. Originally from the rivers of North America, Alligator Gar have found a home in Thailand's stocked lakes and make for an absolutely unforgettable catch. They're not the hardest fighters in the water, but the moment you see one surface and roll — the sheer size and appearance of the thing — is enough to get any angler's heart pounding. Great on lures, fly, or bait, and genuinely one of those fish you'll be talking about for years.
Arapaima
The Arapaima is the stuff of legend. One of the largest freshwater fish on earth, this Amazon giant can reach over 3 metres in length and tip the scales beyond 200kg — and Thailand's stocked lakes hold some absolute monsters. What makes Arapaima fishing so extraordinary is the fight: when hooked, these fish explode out of the water in dramatic, gill-rattling jumps that will test your tackle, your technique, and your nerves all at once. They're also visually stunning — a prehistoric-looking body that fades from olive green into vivid, almost metallic red toward the tail. Fishing for Arapaima in Thailand is a bucket-list experience for serious anglers worldwide, and with Bangkok Fishing Guide you'll have every advantage to land one.
Amazon Redtail Catfish
Few fish combine raw power and visual impact quite like the Amazon Redtail Catfish. Named for the brilliant crimson tail that sets it apart from every other species in the water, this South American giant is built like a freight train and fights like one too. Once hooked, expect long, powerful runs that will strip line from your reel and test your drag to its limits. These fish can grow well past 45kg and are available in several of Bangkok's top stocked lakes, making them one of the most reliably exciting species you can target on a guided trip. Whether you're fishing bait or lures, the take from a Redtail is violent and unmistakable — there's absolutely nothing subtle about this fish
Asian Redtail Catfish
Don't let its smaller stature fool you — the Asian Redtail Catfish is a seriously hard-fighting species that punches well above its weight on light to medium tackle. With a sleek silver body and that distinctive reddish tail, it's a handsome fish that shows up across Bangkok's fishing parks as a welcome bonus catch alongside bigger target species. Fast, powerful, and aggressive on the take, it's a great species for anglers who want constant action rather than waiting around for one big fish. Perfect for beginners getting a feel for tropical freshwater fishing or experienced anglers looking to round out a multi-species day.
Barramundi
Barramundi is Thailand's premier lure fishing species and for good reason — these fish are absolute predators. Fast, aggressive, and acrobatic when hooked, Barramundi are famous for their explosive surface strikes and spectacular aerial jumps that will have your heart in your mouth from the moment they eat the lure to the moment you slide them in the net. Known as Asian Sea Bass, they grow to impressive sizes in Thailand's well-stocked lakes and private ponds, with fish pushing 9kg available at Pilot 111. Whether you're casting poppers across the surface, working soft plastics through the water column, or fly fishing a private pond, Barramundi is one of the most addictive fishing experiences Bangkok has to offer.
Chaopraya Catfish (Dog Eating Catfish)
Meet Bangkok's most fearsome resident. The Chaopraya Catfish — also known as the Dog Eating Catfish — is one of the largest catfish species in the world, capable of growing to 2.7 metres and exceeding 270kg in the wild. In the stocked lakes around Bangkok, fish of over 100kg are a very real possibility, and when one of these giants takes your bait, the entire experience shifts into a different gear entirely. These fish are pure brute force — there's no acrobatics, no aerial displays, just an immovable wall of muscle that will grind you down if you're not ready for it. Landing a Chaopraya Catfish is a genuine physical challenge and an experience that very few anglers outside of Thailand ever get the chance to have.
Hampala Barb aka Jungle Perch
If you want to experience what fishing in the wild heart of Southeast Asia feels like, the Hampala Barb — known locally as Jungle Perch — is your fish. Found in Thailand's rivers and reservoirs, this species is the freshwater equivalent of a largemouth bass — aggressive, territorial, and a ferocious striker on topwater lures and surface flies. The take is explosive, the fight is fast and powerful for the fish's size, and the setting — deep in a jungle reservoir surrounded by dramatic scenery — is unlike anywhere else you'll ever fish. Jungle Perch are the highlight of our reservoir day trips and a firm favourite among fly fishers looking for something truly wild and memorable.
Giant Mekong Catfish
The Giant Mekong Catfish is arguably Thailand's most iconic sport fish — a critically endangered giant that can exceed 270kg in the wild and still grows to extraordinary sizes in Bangkok's famous fishing lakes. Bungsamran is ground zero for Mekong Catfish fishing in Thailand, and on any given day anglers are pulling fish of 30, 50, even 80kg from its waters. The fight is everything you'd expect from a fish of this size — long, powerful, and utterly exhausting — and the sight of one of these enormous creatures finally rolling to the surface is one of the most memorable moments in freshwater fishing anywhere in the world. If you only target one species during your time in Bangkok, make it this one.
Giant Siamese Carp
The Giant Siamese Carp is the holy grail for carp anglers visiting Asia — a fish that dwarfs anything you'll encounter back home and fights with a power and stubbornness that has reduced grown adults to jelly. Covered in enormous, mirror-like scales and capable of exceeding 100kg in the stocked lakes around Bangkok, a trophy Siamese Carp is one of the most coveted catches in freshwater fishing worldwide. The fight is a long, arm-burning battle of wills that can last an hour or more on heavy tackle — and when you finally cradle one for a photo, the sheer scale of the fish makes it almost impossible to hold. Bungsamran is the premier location for targeting Siamese Carp, and it's a species that draws dedicated anglers from every corner of the globe.
Giant Snakehead
The Giant Snakehead is Bangkok's most exciting lure fishing target — a highly aggressive apex predator that will crash a surface lure with a ferocity that will make you jump out of your skin. Built like a torpedo with a mouthful of teeth, these fish are ambush hunters that lurk in the shallows and strike with explosive speed. What sets Snakehead apart from most other species is the visual nature of the take — watching a big Snakehead boil up from under a buzzbait or blow up on a frog is an adrenaline rush that never gets old, no matter how many times you experience it. Available in Bangkok's fishing parks and in the wild at our reservoir destinations, the Giant Snakehead is a must-target species for any visiting lure angler.
Pacu
Don't be fooled by the Pacu's reputation as a fruit-eating, piranha-looking curiosity — this fish fights like a freight train. A close relative of the piranha, the Pacu's deep, powerful body is built for bulldozing runs that will test even heavy tackle, and fish of 30–40kg are regularly encountered in Bangkok's stocked lakes. They're also one of the most distinctive-looking fish you'll ever hold — a thick, silver-flanked beast with a remarkably human-like set of teeth that makes for an unforgettable photo. Pacu show up regularly at Pilot 111 and Palm Tree Lagoon as bonus catches on both bait and lure, and on the right day they are one of the hardest-fighting fish in the water.
Striped Snakehead
The Striped Snakehead is the wild cousin of the Giant Snakehead — smaller, faster, and found in the remote rivers and reservoirs where the fishing feels genuinely untamed. What it lacks in size it makes up for in pure aggression, smashing topwater lures and flies with a ferocity that belies its modest dimensions. For fly anglers in particular, the Striped Snakehead is a dream target — fast, visual takes on surface flies in stunning natural surroundings make for some of the most exciting light-tackle fishing Thailand has to offer. If you're heading out on one of our reservoir day trips, keep a surface lure tied on — a Striped Snakehead encounter is never far away.
