Fish Identifier

Fish Encyclopedia

Search and identify 1,000+ fish species — freshwater, saltwater, reef, and pelagic — with habitat, size, diet, behavior, and how to tell them apart.

Threadfin Trevally

Threadfin Trevally

An Indo-Pacific jack whose juveniles trail extraordinarily long thread-like fins, maturing into deep-bodied, steep-headed adults over sandy coastal bottoms and reef edges.

reef
Lemon Shark

Lemon Shark

A stocky, yellow-brown coastal shark named for its sandy coloration, recognized by two nearly equal-sized dorsal fins, common in shallow mangrove and reef habitats of the western Atlantic and eastern Pacific.

cartilaginous
Streaked Spinefoot

Streaked Spinefoot

A large silvery-gray rabbitfish marked with fine dark streaks and scattered pale spots, commonly found in estuaries, mangroves, and coastal reefs across the Indo-Pacific.

brackish
Gilthead Bream

Gilthead Bream

A deep-bodied Mediterranean and Eastern Atlantic sparid named for the golden band across its forehead. A euryhaline species that moves between coastal reefs and brackish lagoons.

saltwater
Malabar Grouper

Malabar Grouper

The Malabar grouper is a large, olive-grey Indo-Pacific grouper covered in dark blotches and small pale spots, found across coastal reefs, estuaries, and mangrove-lined coasts.

reef
Sheepshead

Sheepshead

A deep-bodied coastal fish easily recognized by bold black vertical bars and prominent human-like teeth, common around docks, jetties, and oyster reefs along the western Atlantic.

saltwater
Barracuda

Barracuda

A large, torpedo-shaped predatory fish found around tropical reefs, seagrass beds, and open coastal waters worldwide, easily identified by its underbite jaw and fang-like teeth.

reef
Silver Perch

Silver Perch

The Silver Perch is a small, bright silvery sciaenid common in seagrass and oyster reef habitats along the U.S. Atlantic and Gulf coasts.

brackish
Cabezon

Cabezon

The cabezon is the largest sculpin of the North American Pacific coast, a heavily mottled, scaleless ambush predator that blends into rocky reef and kelp habitat.

saltwater
Rosy Rockfish

Rosy Rockfish

A small, brightly colored rockfish with rose-pink coloring and dark saddle blotches, found on rocky reefs along the California coast.

saltwater
Vermilion Rockfish

Vermilion Rockfish

A vivid orange-red rockfish of Pacific coast reefs, often called 'red snapper' informally by anglers despite being unrelated to true snappers.

saltwater
Catalina Goby

Catalina Goby

A tiny, vividly colored goby with electric blue bands over a red-orange body, found perched on rocky reefs and kelp holdfasts off the Pacific coast.

reef
Tautog

Tautog

A large, robust, dark-mottled wrasse tied closely to rocky reefs and wrecks along the western Atlantic coast, known for its powerful shellfish-crushing jaws.

saltwater
Blue Rockfish

Blue Rockfish

A schooling rockfish with dark blue-gray coloring, commonly seen in large numbers around kelp forests and rocky reefs along the Pacific coast of North America.

saltwater
Black Rockfish

Black Rockfish

A dark, deep-bodied schooling rockfish common over rocky reefs and kelp forests along the Pacific coast, often seen in large surface-oriented aggregations.

saltwater
Yellowtail Rockfish

Yellowtail Rockfish

A slender, olive-brown Pacific rockfish with yellow-tinted fins that schools in large midwater aggregations over rocky reefs and open water along the North American coast.

saltwater
Pacific Red Snapper

Pacific Red Snapper

A bright reddish-pink snapper of rocky reefs along the Eastern Pacific coast from Mexico to Peru, closely resembling its Atlantic namesake but found in a different ocean.

reef
Black Sea Bass

Black Sea Bass

A stocky, dark-bodied grouper relative common on rocky reefs and wrecks along the temperate western Atlantic coast, easily recognized by its high arched back and blunt head.

reef
Longfin African Conger

Longfin African Conger

A slender, sand-dwelling conger with a distinctly long dorsal fin and a two-tone body, found burrowing along reef flats and lagoons across the Indo-Pacific and East African coast.

reef
Kelp Bass

Kelp Bass

The kelp bass is a mottled olive-brown temperate reef fish closely tied to kelp forests along the eastern Pacific coast, often seen hovering near kelp fronds and rocky structure.

saltwater