Red Grouper Identification Guide

Key identification features

• Robust, heavy-bodied fish with a reddish-brown to brick-red mottled pattern over a paler background
• Pale blotches and light spots concentrated around the eyes and head
• Caudal fin with a nearly straight to slightly squared rear margin, unlike the rounded tails of many relatives
• Black margins along the inside of the mouth, visible when the jaw is open
• Sloping forehead profile and a moderately large mouth

Common look-alikes

• Nassau grouper: shares a mottled brown pattern but shows a bold dark saddle blotch near the tail base and a row of dark spots below the eye, both absent in red grouper.
• Black grouper: has a more elongate body with rectangular, brassy-edged blotches and a rounded tail, versus red grouper's squared tail margin.
• Scamp: displays fine dark spots arranged in rows rather than red grouper's blotchy mottling, and adults grow elongated tail filaments.

Where you'll see one

Red grouper live over hard bottom, ledges, and reefs in the Western Atlantic and Gulf of Mexico, typically from nearshore rocky structure down to deeper offshore banks.