Species guide · From estuary silvers to offshore GTs — speed and brutality

Trevally fishing guide.

Also known as GT, Giant Trevally, Bigeye Trevally, Silver Trevally, Golden Trevally. Bait, technique, tide windows, and where the bite is on right now.

Trevally — From estuary silvers to offshore GTs — speed and brutality. Also called GT, Giant Trevally, Bigeye Trevally, Silver Trevally, Golden Trevally.

Best bait
Live yakka, slimy mackerel or mullet (size matched to target species)
Best lure
Stickbaits 180–250 mm for GTs (Hammerhead I-Witness, Nomad Madscad, GT Ice Cream)
Best tide
Current is the master variable for all trevally species.
Legal limits
Highly variable by species and state.
In season
In season now (June) at 8 of our covered spots

Giant trevally inhale their prey from 20 cm away through pure suction — the gill flare creates a vacuum that pulls bait into the mouth before the fish even closes the gap. That is why a stickbait worked with a sharp downward sweep, leaving a hole in the water surface, triggers them: the lure mimics a fleeing fish that just got vacuum-pulled.

Types of Trevally — how to identify them

Trevally is also known as: GT, Giant Trevally, Bigeye Trevally, Silver Trevally, Golden Trevally. From estuary silvers to offshore GTs — speed and brutality.

Regional names can confuse anglers and cause misidentification. The table of common names below covers the most-used alternatives across Australia, New Zealand and the US:

Key to correct identification: check the regulations-authority species sheet for your state or territory before keeping any fish — minimum legal sizes, bag limits and identification guides are published by each fisheries department and are the authoritative source.

Where the Trevally bite is on right now

Hero spots in our coverage where Trevally is in season for June. Click through for the live forecast.

1 Weipa · Weipa, QLD · Australia QLD-CAPE 2 Darwin · Darwin, NT · Australia NT 3 Gold Coast · Gold Coast, QLD · Australia QLD-SE 4 Brisbane · Brisbane, QLD · Australia QLD-SE 5 Sydney Harbour · Sydney, NSW · Australia NSW 6 Manly Beach · Sydney, NSW · Australia NSW 7 Bondi Beach · Sydney, NSW · Australia NSW 8 Cronulla · Sydney, NSW · Australia NSW

Related field guides

Deeper reading on the species, the tides, the safety, and the timing windows behind the forecast.

Best bait

Best lures

Technique

GTs (giant trevally — tropical reefs): cast 180–250 mm stickbaits and poppers at reef edges, bommies and current lines on heavy popping rods (PE6–PE10). Walk the bait fast — they want to chase. Strikes are explosive surface eruptions; the take rate to landing rate is brutal because they live in nasty structure. Silvers (estuaries, NSW): light gear, small metals and plastics around schools busting on bait near wharves, breakwalls, and harbour markers.

Tide windows that matter

Current is the master variable for all trevally species. GTs hunt on current lines and the up-current side of reef structure — slack tide is dead, peak run is gold. In estuaries, silvers school heavily on the tide-change edges around wharf lights at night.

Moon & solunar

For GTs, the few days either side of the new moon often produce the biggest surface eruptions on tropical reefs — dark nights mean active hunting. Full moons can shut the day bite down (they've fed all night) and re-open it in the late afternoon. Estuary silvers are minimally moon-driven.

Regulations

Highly variable by species and state. QLD trevally: 30 cm, bag of 20 (combined). NSW: no minimum for silver, GT typically released. NT GT: 70 cm, bag of 5. WA: bag of 10 various. Check the relevant state fisheries — GTs are tag-and-release in most serious jurisdictions because of ciguatera risk and slow growth.

NSW size & bag limits for Trevally — current DPIRD limits, verified →

What ~1.2K real catches show

From our training corpus of ~1.1M angler-logged catches across 14 regions. Last refreshed 2026-05-18.

Top fishing methods

1 Casting 60%
2 Bottom fishing 17%
3 Trolling 6%
4 Jig fishing 5%
5 Free line 2%

Peak month

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Peak hour of day

12a
3a
6a
9a
12p
3p
6p
9p

Top water bodies

Conditions when caught (median & middle-50%)

Water temp
23.5°C
middle 50%: 21.3–25.4°C
Wind
3.3 m/s
middle 50%: 2.2–4.5 m/s
Swell
0.6 m
middle 50%: 0.4–1 m
Pressure
1013.9 hPa
middle 50%: 1010–1017.6 hPa
Written by
Olli-Mikael Vaittinen, founder of Fishare, holding a yellowfin tuna boatside
Olli-Mikael Vaittinen

Olli-Mikael Vaittinen has fished his whole life. Fifteen years of fly fishing, guiding seasons on Norway's Lakselva — his favourite Atlantic salmon river — and a blue marlin landed in Vava'u, Tonga. Founder of Fishare — the app that puts the data behind the decisions every angler makes on the water.

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