Flathead are the friendliest big fish in Australia. They live in shallow estuaries and bays around almost every coastline, they hit lures with no shyness, and a 60cm fish will absolutely send any beginner home with a story. If you have never caught a fish on a lure, this is the species to start with.
This guide is written for first-timers. Every term that might trip you up is explained the first time it appears. No assumed knowledge.
What is a flathead?
Flathead are a family of ambush predators that live on the sandy and muddy bottoms of estuaries and inshore reefs around Australia. They are flat (the name is honest), tan or olive on top with white bellies, and they have a wide mouth full of small needle-sharp teeth. They are not pretty fish. They are also one of the best-eating fish in the country and one of the most fun to catch.
The main target species you will hear about are dusky flathead (the big NSW and QLD estuary species, grows to 1.2 metres), sand flathead (smaller, common in Tasmania and Victoria, grows to about 50cm), and a handful of regional cousins like tiger flathead and bar-tailed flathead. The lures and techniques that catch one will mostly catch the others, so anywhere you live in Australia you can fish flathead.
Most flathead you catch will be between 35 and 55cm long. A 60cm+ fish is a very good catch. Anything over 70cm is a trophy and almost always a breeding female that should go straight back.
Where to find flathead
Flathead live in shallow, sandy or muddy water. They sit on the bottom, half-buried, and ambush anything that swims past. To find them, look for these features:
- Sand flats. Shallow water (0.5 to 3 metres deep) with a sandy or sand-and-weed bottom. Fish at the edges of flats where sand meets deeper water.
- Drop-offs and channels. The edge of a flat where it falls into a deeper channel. Flathead sit on the edge and ambush bait swept past by the current.
- Weed edges. Where sand meets ribbon weed or seagrass. Cast soft plastics so they hop along the sand-weed border.
- Mouths of small creeks and drains. Especially on a running tide. Bait gets washed out, flathead wait at the mouth.
State-by-state starting spots
New South Wales
- Pittwater and Hawkesbury (north of Sydney). Big dusky water. Lion Island, Patonga, Cowan Creek.
- Sydney Harbour. Middle Harbour, Lane Cove River. Yes, in the city.
- Botany Bay. Big duskies on the sand flats near Towra Point.
- Georges River. Estuary classic. Drifts work well here.
- Lake Macquarie (Newcastle). Huge flathead water. The pelican flat is famous.
Queensland
- Moreton Bay (Brisbane). One of the best flathead fisheries in Australia. Jumpinpin, Russell Island flats, Amity Banks.
- Pumicestone Passage (Sunshine Coast).
- Tweed River (Gold Coast/Tweed Heads).
- Tin Can Bay (Wide Bay).
Victoria
- Port Phillip Bay (Melbourne). Sand flathead heaven, drift the channels near Mordialloc or St Kilda. Bag and slot rules are different to NSW, check before you fish.
- Western Port. Big mud flats, big dusky-style flathead.
- Gippsland Lakes.
South Australia, WA, and Tasmania
- SA: Port River, West Lakes, Coorong.
- WA: Swan River, Peel Inlet, Leschenault Estuary.
- TAS: Tamar River, Pittwater estuary, the sand flathead grounds off Hobart.
The most important advice on this page: pick one estuary or bay near you and fish it across a season. Flathead move predictably with the tide and the season. Three or four trips to the same water will teach you more than 12 trips to 12 places.
When to fish for flathead
Flathead are around year-round but the bite is strongest in the warmer months. September through April is the peak window. Water temperature above 18 degrees Celsius is the sweet spot.
The tide matters more than the time of day. Flathead feed best on a moving tide. Slack water (the flat top or bottom of the tide) is usually the slowest part of the day. The first three hours of a run-out tide or the first three hours of a run-in tide are the best windows.
In summer, dawn and dusk add an extra edge. In winter, the middle of the day when the water has warmed up a few degrees often fishes best.
The basic setup, what to buy
One rod, one reel, one spool of line, a leader spool, a packet of jigheads, and a packet of soft plastics will catch flathead anywhere in Australia. Total cost around $250 if you buy mid-range, less if you go cheap.
Rod
A 7-foot light-to-medium spin rod, rated for 2 to 4kg or 4 to 8lb. The same rod works for bream and bass too, so it is a good first purchase.
Reel
A 2500-size spinning reel. Daiwa, Shimano, and Penn all make options under $200.
Line
Braid in 8 to 10 lb breaking strain. Braid is a thin woven line with almost no stretch, you feel every bump on the bottom which is critical for flathead fishing.
Leader
Fluorocarbon leader in 12 to 20 lb. Use heavier (20 lb) if you are chasing big duskies, lighter (12 lb) if you are after numbers in clear water. Flathead have abrasive teeth and gill plates, so leader matters. Tie about 1 metre of leader to your braid.
Jigheads
A "jighead" is a weighted hook with the weight on the eye end. You thread your soft plastic onto it. Buy a pack each of 1/8 oz, 1/6 oz, and 1/4 oz weights, hook size 1/0 or 2/0. Lighter for shallow water, heavier for current or deep water.
Soft plastics
A "soft plastic" is a rubbery lure shaped like a baitfish or shrimp. The classics for flathead are:
- 4 inch paddle-tail minnow (like a ZMan MinnowZ or Berkley Gulp Minnow).
- 3 inch grub or curl-tail.
- 3 inch jerk shad.
Colour matters less than size and action. Start with white, brown, and pink. Each costs about $10 a packet.
Four techniques that catch flathead
1. The standard drift
This is the technique that catches 80% of flathead. From a boat or kayak, drift across a sand flat or along a channel edge with the wind or tide. Cast a soft plastic on a jighead out behind the boat. Let it sink to the bottom. Then "hop" it back to the boat with small lifts of the rod tip. Hop, pause, hop, pause. The pause is what gets the bite.
Most strikes feel like a small "thump" or a sudden weight. Lift the rod firmly. Do not jerk hard, flathead have soft mouths and the hook can rip out.
2. Cast and retrieve from the bank
You do not need a boat. Stand on a sand spit or rocky point at the mouth of a creek and cast a soft plastic out into the channel. Same hop-and-pause retrieve. Walk along the bank covering ground. Flathead are spread out, so casting from a fixed point limits you. Move every 5 to 10 casts if you do not get a hit.
3. Trolling a small hardbody
From a kayak or boat, troll a small hardbodied minnow (around 50 to 70mm long) at about 2 knots along a channel edge. Hardbodies cover more water than plastics. Good for searching new areas to find where the fish are concentrated.
4. Bait fishing for kids and beginners
If lures feel like too much, flathead will eat fresh bait readily. A whole pilchard or a strip of fresh prawn on a 4/0 long-shank hook, fished on the bottom with a small running sinker, will catch as many flathead as any lure rig. This is how most Australians catch their first flathead.
Rigging, the only knots you need
Tie your braid to your fluorocarbon leader using an FG knot or a double Uni knot. Both pass through the rod guides smoothly. Watch a YouTube tutorial. 10 minutes of practice and you will use that knot for the rest of your life.
Tie your leader to the jighead using a loop knot (such as a non-slip mono loop). The loop lets the jighead swing freely on the line, which makes the soft plastic move more naturally.
Rules, slot limits, and looking after the fishery
Flathead have slot limits in most states. A slot limit means you can only keep fish within a certain size range. The big breeding females above the slot must go back in the water. This is how the fishery stays healthy for the next generation.
Current rules change from time to time. Always check before you fish:
- NSW saltwater fishing rules
- Queensland recreational fishing rules
- Victorian Fisheries Authority
- Recfishwest (WA)
How to release a flathead well. Wet your hands before you touch the fish. Hold it horizontally, never by the gills. Take your photo quickly (10 seconds is plenty). Lower it back into the water and hold it gently until it kicks out of your hand. Big females especially deserve careful release, they are the future of the fishery.
You also need a recreational fishing licence in NSW (saltwater), Victoria, and WA. Queensland does not require a tidal-water licence. Check the relevant state link above before you fish.
Now go fishing
Flathead are the easiest big fish in Australia to catch on a lure. Pick an estuary near you, fish a run-out tide on a sand flat with a 3-inch soft plastic on a 1/6 oz jighead, and you will catch a fish. It is genuinely that simple.
We built Harson because we wanted fishing to feel less like a wall to climb and more like a thing you can just start doing. If this guide helped, the rest of our species guides cover Bass, Bream, Murray Cod, Whiting, and a dozen others. Same format, same accessibility-first approach.
Captain Baker, Harson Outdoors