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.

Palette Surgeonfish

Palette Surgeonfish

The vivid blue-and-black Blue Tang, famous for its palette-shaped markings and bright yellow tail; an Indo-Pacific coral reef species that feeds mainly on drifting plankton rather than algae.

reef
Brown Surgeonfish

Brown Surgeonfish

A small, plain brown Indo-Pacific tang that is nonetheless one of the most abundant algae-grazing reef fish, playing a key role in controlling reef algal growth.

reef
Lined Surgeonfish

Lined Surgeonfish

A boldly striped blue, black, and yellow tang that fiercely defends algal-turf patches on shallow, wave-exposed reef crests across the Indo-Pacific.

reef
Whitetail Surgeonfish

Whitetail Surgeonfish

A slender, dark-bodied tang with a strikingly pale, forked tail, often seen hovering in groups over Indo-Pacific reef drop-offs to feed on drifting zooplankton.

reef
Yellowfin Surgeonfish

Yellowfin Surgeonfish

One of the largest surgeonfishes, reaching 70 cm, identified by a bright yellow pectoral-fin patch and blue-ringed eyes; found in lagoons and bays across the Indo-Pacific and eastern Pacific.

reef
Ringtail Surgeonfish

Ringtail Surgeonfish

A blue-grey Indo-Pacific tang identified by the narrow white ring encircling its tail base; common on coral and rocky reefs from East Africa to Hawaii.

reef
Eyestripe Surgeonfish

Eyestripe Surgeonfish

An Indo-Pacific tang with fine blue pencil-lines over a yellow-brown body and a distinctive yellow stripe through the eye; notably long-lived, reaching nearly 30 years.

reef
Doubletooth Surgeonfish

Doubletooth Surgeonfish

A sawtail surgeonfish of the genus Prionurus, marked by rows of forward-angled bony 'teeth' on the tail base instead of a single blade-like spine; found on rocky reefs of the eastern tropical Atlantic.

reef
Reef Stonefish

Reef Stonefish

The reef stonefish is the classic, rock-mimicking stonefish of coral reef flats, considered one of the most venomous fish in the sea and virtually invisible against reef rubble.

reef
Reef Shark

Reef Shark

A common, streamlined shark patrolling Indo-Pacific coral reefs, recognized by its broad black-edged tail fin and stout gray body.

reef
Reef Needlefish

Reef Needlefish

A long, slender, silvery needlefish with elongated toothy jaws, commonly seen cruising just below the surface over Indo-Pacific coral reefs and reef flats.

reef
Reef Croaker

Reef Croaker

A coppery-golden drum associated with Caribbean coral reefs, unusual among croakers for its strong reef affinity rather than open sand or mud habitat.

reef
Blue Reef Chromis

Blue Reef Chromis

A slender, brilliant blue schooling fish commonly seen hovering in large numbers above coral reef outcrops throughout the Caribbean and western Atlantic.

reef
Blacktip Reef Shark

Blacktip Reef Shark

A slender, small reef shark instantly recognized by the bold black tips on all its fins, commonly seen patrolling shallow lagoons and reef flats across the Indo-Pacific.

reef
Whitetip Reef Shark

Whitetip Reef Shark

A slender nocturnal reef shark marked by distinctive white-tipped fins, often seen resting motionless inside reef caves and under ledges by day across the Indo-Pacific.

reef
Caribbean Reef Shark

Caribbean Reef Shark

The most commonly encountered large shark on Caribbean reefs, a stocky gray requiem shark often seen resting motionless on the sea floor.

reef
Sabertooth Fish

Sabertooth Fish

A slender deep-sea predator with oversized fang-like teeth and unusual tubular, upward-angled eyes that help it spot the silhouettes of prey against faint downwelling light.

deepsea
Paradise Fish

Paradise Fish

A hardy East Asian labyrinth fish with vivid blue-and-red banded flanks and flowing fins, historically one of the first ornamental fish kept in Western aquariums.

freshwater
Jackknife-fish

Jackknife-fish

A boldly black-and-white striped reef drum with a dramatic, curved dorsal fin that resembles the blade of an open jackknife.

reef
Tripod Fish

Tripod Fish

An abyssal fish that props itself above the seafloor on three elongated fin rays, forming a tripod, and waits motionless facing into the current to ambush tiny drifting prey.

deepsea
Football Fish

Football Fish

A round, warty deep-sea anglerfish whose much larger females dangle a bioluminescent lure from a spine above the mouth to draw prey through the permanent darkness of the deep ocean.

deepsea
Bumblebee Fish

Bumblebee Fish

A tiny, boldly banded goby popular in brackish aquariums, named for its wasp-like black-and-yellow stripes.

brackish
Four-Eyed Fish

Four-Eyed Fish

A surface-dwelling brackish-water fish famous for eyes split into upper and lower halves, allowing it to see simultaneously above and below the waterline.

brackish
African Tiger Fish

African Tiger Fish

A ferocious, fast-swimming predator of southern and eastern African rivers, armed with prominent interlocking teeth and known for spectacular aerial strikes on prey.

freshwater