The same LRF tactics and strategies used for Rockfish and small predators such as Pike, Perch and Wrasse can be applied when going for flounder from the beach, pier or breakwater. Where there are fish, you can land some with solid LRF tactics.
Being mainly bottom feeders, a non-threatening looking fish it is easy to think that flounder are not going to behave like other predators. If you pull some Power Isome or a small lure over the head of a founder; they will grab it. Using fresh Rag or Lug worms will also work. However, if you are casting-retrieving with a certain amount of jigging or jerking the bait it may not hold together as well.
These LRF tactics work because of what we keep saying: big fish eat little fish. It is easy to forget the flounder can be predatory in nature as everything about them seems to be designed to lay flat on the bottom of the seabed and hide. This actually is a good insight into their nature and potential behaviour patterns.
However, think about how other predators like Pike behave when hiding at the bottom of a river or loch. Thousands of years of evolution has helped these guys lay on the bottom unseen and strike out at unsuspecting fry that are feeding on little leftovers in the sand.
This is where a little jig head and some Marukyu Power Isome Sandworm cut into little pieces come in very useful. There are plenty other small LRF lures suited to catch flatfish too for example: Mebaru & AJI Oboro 1.5\” Lures with a Jig Head.
Flounder ambush their prey, feeding at soft muddy areas of the sea bottom, near bridge piles, docks and coral reefs. They have been found at the bottom of the Mariana trench, the deepest known ocean canyon. Swiss scientist Jacques Piccard and US Navy Lt. Don Walsh reached a depth of 10,916 meters (35,814 ft) and were surprised to discover sole or flounder about 30 cm long. A flounder’s diet consists mainly of fish spawn, crustaceans, polychaetes and small fish. Flounder typically grow to a length of 12.5–37.5 centimetres (4.9–14.8 in), and as large as 60 centimetres (24 in). Their width is about half their length. Male Platichthys are known to display a pioneering spirit, and have been found up to 80 miles off the coast of northern Sardinia, sometimes with heavy encrustations of various species of Barnacle.
Worth a watch:
When it comes to flounder it is all too often assumed that you need to cast really far to get the best chance of reaching them. I have supplied plenty 13-14ft rods with heavy duty reels, line, tripods, weights and everything else for beach fishing. The added variable is often a pair of chest waders. We will call him; Mr Angler.
Mr Angler will wade out as far as he can, do a big pendulum style cast with all his might and then walk to put the rod onto the tripod.
In this case, Mr Angler has probably walked past a few flatties (if not, stood on one) and then cast out even further past a lot of them.
With a light spinning outfit you can easily cast to where they are sitting in their rested state. On sandy marks, casting 15ft or more and then jigging the lure back in stages will likely be more than enough distance.
For what gear you need, you can start here.