Unicorn FilefishorGray Triggerfish
Two fish anglers mix up. Here is what separates them, and what each one’s rules are in your state.
How to tell them apart
Unicorn Filefish
Gray-brown filefish with a long rough dorsal spine and a very long, thin rear body; often seen under floating weed.
Gray Triggerfish
Leathery gray diamond body, trigger-locking first dorsal spine, tiny chisel teeth.
Gray triggerfish, next to unicorn filefish: stout, spiny first dorsal locks up.
Side by side
| Unicorn Filefish | Gray Triggerfish | |
|---|---|---|
| Scientific name | Aluterus monoceros | Balistes capriscus |
| Also called | Unicorn leatherjacket | Trigger |
| Waters | Offshore | Nearshore |
| Heaviest state record | — | 13 lb 9 oz · South Carolina (1989) |
| On the table | Edible — skin it; firm white meat. | Excellent — tough hide, worth the effort. |
| Rules of its own in | 2 states | 9 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), unicorn 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.
| State | Unicorn Filefish: size · bag · season | Gray Triggerfish: size · bag · season |
|---|---|---|
| Alabama | Not 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 aggregateYear-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 aggregateYear-roundOpenFWC 2026 · likely · checked | 15 in fork length min1 per personOpen Mar 1-May 31 and Aug 1-Dec 31OpenFWC 2026 · checked |
| Georgia | Not 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 |
| Louisiana | Not 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 |
| Mississippi | Not 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 Carolina | Not 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 |
| South Carolina | Not 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 |
| Texas | Not 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, unicorn filefish or gray triggerfish, with the right rules for the water you’re standing in. No signal needed.
Get the appQuestions anglers ask
How do you tell unicorn filefish from gray triggerfish?
Unicorn Filefish: Gray-brown filefish with a long rough dorsal spine and a very long, thin rear body; often seen under floating weed. Gray Triggerfish: Leathery gray diamond body, trigger-locking first dorsal spine, tiny chisel teeth. Gray triggerfish, next to unicorn filefish: stout, spiny first dorsal locks up.
Which is better to eat, unicorn filefish or gray triggerfish?
Unicorn Filefish: Edible — skin it; firm white meat. Gray Triggerfish: Excellent — tough hide, worth the effort.
Do unicorn filefish and gray triggerfish have the same limits?
Not everywhere. They differ in 9 state rulebooks. Florida (Atlantic): unicorn 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): unicorn filefish No size limit, 5 per species within 20-organism marine life aggregate, gray triggerfish 15 in fork length min, 1 per person; Alabama: unicorn filefish no rule of its own, gray triggerfish 15 in fork length minimum, 1 per person; Georgia: unicorn filefish no rule of its own, gray triggerfish 12 in fork length, 10 per person per day within 20-fish snapper-grouper aggregate; Louisiana: unicorn filefish no rule of its own, gray triggerfish 15 in fork length, 1 per person within reef fish aggregate; and more in the table on this page.