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.

White Cloud Mountain Minnow

White Cloud Mountain Minnow

A hardy, cold-tolerant minnow with a metallic green-gold stripe and red-tinted fins, native to cool mountain streams in southern China.

freshwater

Bluntnose Flyingfish

A small flyingfish with a short, blunt snout and large wing-like pectoral fins, gliding above the open tropical Atlantic.

pelagic
Threadfin Rainbowfish

Threadfin Rainbowfish

A tiny, delicate rainbowfish famed for the male's elongated, thread-like extensions on the dorsal and anal fins that trail behind the body.

freshwater
Swordfish

Swordfish

A large, powerful open-ocean predator identified by its long, flat sword-like bill, capable of deep dives and high-speed pursuit of prey.

pelagic
Spinner Shark

Spinner Shark

A slender, high-speed coastal shark famous for leaping and spinning out of the water while lunging through schools of baitfish.

saltwater
Spotfin Croaker

Spotfin Croaker

A robust surf-zone drum from Southern California and Baja, easily identified by a bold black spot at the base of each pectoral fin.

saltwater
Spotted Croaker

Spotted Croaker

A large Indo-Pacific drum with scattered dark spots along its silvery back, common in turbid estuaries and river mouths.

brackish
Spot Croaker

Spot Croaker

Spot is a small, deep-bodied estuarine fish easily identified by a single dark shoulder spot and faint oblique bars along its upper body.

brackish
Spotted Wolffish

Spotted Wolffish

A large, deep-water wolffish covered in bold dark spots, found in cold Arctic and North Atlantic waters on rocky and gravel seafloor.

deepsea
Red-eye Tetra

Red-eye Tetra

A hardy, wide-ranging South American characin identified by its striking red iris band and bold black-and-white marked tail base.

freshwater
Redtail Catfish

Redtail Catfish

A large South American river catfish easily recognized by its dark body, cream underside, and vivid orange-red tail fin.

freshwater
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
Pictus Catfish

Pictus Catfish

A small, active South American catfish marked with dark spots over a silvery body and extremely long, trailing barbels.

freshwater
Pike Livebearer

Pike Livebearer

A large, elongated predatory livebearer from Central America with a pike-like head and mouth built for ambushing small fish.

freshwater
Pompano

Pompano

A deep-bodied, silvery jack with a forked tail, found along sandy coastal shores of the eastern Atlantic and Mediterranean.

saltwater
Permit

Permit

A deep-bodied, silvery flats and reef fish of the western Atlantic, famed among anglers for its wary nature and sickle-shaped fins.

reef
Picasso Triggerfish

Picasso Triggerfish

A boldly patterned triggerfish with geometric blue, yellow, and black markings, common on shallow Indo-Pacific reef flats.

reef
Panda Corydoras

Panda Corydoras

A small, pale armored catfish with bold black patches around the eyes and tail, resembling its namesake in miniature form.

freshwater
Mandarinfish

Mandarinfish

A tiny, vividly patterned reef fish covered in a maze-like network of blue, orange, and green, prized as one of the most colorful fish in the ocean.

reef
Moorish Idol

Moorish Idol

An unmistakable disc-shaped reef fish with bold black-white-yellow bands and a dramatically long trailing dorsal fin.

reef
Niger Triggerfish

Niger Triggerfish

A deep blue-green triggerfish with reddish teeth and a trailing crescent tail, often seen feeding on plankton above reef slopes.

reef

Northern Kingfish

A slender surf-dwelling drum of the Atlantic coast, marked by bold dark diagonal bars and a distinctive elongated dorsal fin ray.

saltwater
Maroon Clownfish

Maroon Clownfish

The largest and most aggressive anemonefish, with a deep maroon body and bold white or gold bars, fiercely guarding its host anemone.

reef
Naso Tang

Naso Tang

A large surgeonfish with bright orange lips and a yellow tail-base marking, grazing algae along Indo-Pacific reef slopes.

reef