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Species · Lookalikes

Planehead FilefishorGray Triggerfish

Two fish anglers mix up. Here is what separates them, and what each one’s rules are in your state.

Studio photograph of a Planehead Filefish (Stephanolepis hispida), side view, on a white background
Planehead FilefishStephanolepis hispida
Studio photograph of a Gray Triggerfish (Balistes capriscus), side view, on a white background
Gray TriggerfishBalistes capriscus

Rules for both fish from 9 state rulebooks, checked Sep 18, 2026. Every rule names its source and the day it was last checked; the official rulebook is the final word.

How to tell them apart

Planehead Filefish

Palm-sized mottled filefish with a single trigger spine above the eye and sandpaper skin.

Gray Triggerfish

Leathery gray diamond body, trigger-locking first dorsal spine, tiny chisel teeth.

Gray triggerfish, next to planehead filefish: true trigger — bigger, with a three-spine dorsal lock.

Side by side

Planehead FilefishGray Triggerfish
Scientific nameStephanolepis hispidaBalistes capriscus
Also calledFoolfishTrigger
WatersNearshoreNearshore
Heaviest state record13 lb 9 oz · South Carolina (1989)
On the tableEdible but tiny — mostly a bait-stealer.Excellent — tough hide, worth the effort.
Rules of its own in3 states9 states

Rules for

Every state, both fish

The two fish are regulated differently in 9 of 9 states with a rule for either. In Florida (Atlantic), planehead filefish is No size limit, 5 per species within 20-organism marine life aggregate and gray triggerfish is 12 in fork length min, 10 per person. Call the fish wrong and you keep a short one or throw back a legal one.

StatePlanehead Filefish: size · bag · seasonGray Triggerfish: size · bag · season
AlabamaNot specifically regulated; the state’s default for unlisted species applies.15 in fork length minimum1 per personState waters follow federal Gulf season; closed annually Jan-Feb and Jun-JulOpenAL MRD 2026 · checked
Florida (Atlantic)No size limit5 per species within 20-organism marine life aggregateOpen year-roundOpenFWC 2026 · likely · checked 12 in fork length min10 per personOpen year-roundOpenFWC 2026 · checked
Florida (Gulf)No size limit5 per species within 20-organism marine life aggregateOpen year-roundOpenFWC 2026 · likely · checked 15 in fork length min1 per personOpen Mar 1-May 31 and Aug 1-Dec 31OpenFWC 2026 · checked
GeorgiaNot specifically regulated; the state’s default for unlisted species applies.12 in fork length10 per person per day within 20-fish snapper-grouper aggregateOpen year-roundOpenFederal rule (South Atlantic federal waters)SAFMC / NOAA SERO 2026 · checked
LouisianaNot specifically regulated; the state’s default for unlisted species applies.15 in fork length1 per person within reef fish aggregateOpen Mar. 1–May 31 and Aug. 1–Dec. 31; closed Jan. 1–Feb. 28 and June 1–July 31OpenLDWF 2026 · checked
MississippiNot specifically regulated; the state’s default for unlisted species applies.15 in fork length minimum1 per personOpen Aug 1 – Dec 31, 2026OpenMS DMR 2026 · checked
North CarolinaNo size limitNo bag limitOpen year-roundOpenNC DMF 2026 · checked 12 in fork length10 per person per day within 20-fish snapper-grouper aggregateOpen year-roundOpenFederal rule (South Atlantic federal waters)SAFMC / NOAA SERO 2026 · checked
South CarolinaNot specifically regulated; the state’s default for unlisted species applies.12 in fork length20-fish snapper-grouper aggregate (max 10 of any one species)Open year-roundOpenSC DNR 2026 · checked
TexasNot specifically regulated; the state’s default for unlisted species applies.16 in total length20Open year-roundOpenTPWD 2026 · checked

In the app

Point the camera at the fish and Chum names it before you take the picture, planehead filefish or gray triggerfish, with the right rules for the water you’re standing in. No signal needed.

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Questions anglers ask

How do you tell planehead filefish from gray triggerfish?

Planehead Filefish: Palm-sized mottled filefish with a single trigger spine above the eye and sandpaper skin. Gray Triggerfish: Leathery gray diamond body, trigger-locking first dorsal spine, tiny chisel teeth. Gray triggerfish, next to planehead filefish: true trigger — bigger, with a three-spine dorsal lock.

Which is better to eat, planehead filefish or gray triggerfish?

Planehead Filefish: Edible but tiny — mostly a bait-stealer. Gray Triggerfish: Excellent — tough hide, worth the effort.

Do planehead filefish and gray triggerfish have the same limits?

Not everywhere. They differ in 9 state rulebooks. Florida (Atlantic): planehead filefish No size limit, 5 per species within 20-organism marine life aggregate, gray triggerfish 12 in fork length min, 10 per person; Florida (Gulf): planehead filefish No size limit, 5 per species within 20-organism marine life aggregate, gray triggerfish 15 in fork length min, 1 per person; North Carolina: planehead filefish No size limit, No bag limit, gray triggerfish 12 in fork length, 10 per person per day within 20-fish snapper-grouper aggregate; Alabama: planehead filefish no rule of its own, gray triggerfish 15 in fork length minimum, 1 per person; Georgia: planehead filefish no rule of its own, gray triggerfish 12 in fork length, 10 per person per day within 20-fish snapper-grouper aggregate; and more in the table on this page.