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.
Pompano
A deep-bodied, silvery jack with a forked tail, found along sandy coastal shores of the eastern Atlantic and Mediterranean.
saltwater
Panda Corydoras
A small, pale armored catfish with bold black patches around the eyes and tail, resembling its namesake in miniature form.
freshwater
Picasso Triggerfish
A boldly patterned triggerfish with geometric blue, yellow, and black markings, common on shallow Indo-Pacific reef flats.
reefNorthern Kingfish
A slender surf-dwelling drum of the Atlantic coast, marked by bold dark diagonal bars and a distinctive elongated dorsal fin ray.
saltwater
Niger Triggerfish
A deep blue-green triggerfish with reddish teeth and a trailing crescent tail, often seen feeding on plankton above reef slopes.
reef
Moorish Idol
An unmistakable disc-shaped reef fish with bold black-white-yellow bands and a dramatically long trailing dorsal fin.
reef
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
A large surgeonfish with bright orange lips and a yellow tail-base marking, grazing algae along Indo-Pacific reef slopes.
reef
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
Glass Catfish
A small Southeast Asian catfish with an almost fully transparent body that reveals its skeleton and internal organs.
freshwater
Golden Trevally
A bright golden-yellow jack, often banded as a juvenile, found around coral reefs and lagoons throughout the Indo-Pacific.
reef
Florida Pompano
A deep-bodied, silvery fish with a forked tail and yellow-tinged fins, common in sandy surf zones along the western Atlantic coast.
saltwater
Fiji Blue Devil
A striking blue-headed, yellow-bodied damselfish endemic to the coral reefs of Fiji and nearby South Pacific islands.
reef
Fingerprint Filefish
The Fingerprint Filefish is a small reef filefish with a dark head, orange-brown body marked by fine irregular lines, and a bright orange tail.
reef
European Sea Bass
The European sea bass is a sleek, silvery predator common along European and North African coasts, prized by anglers as a hard-fighting sport fish.
saltwater
Dolly Varden
A char of Pacific coastal rivers named for a colorfully dressed Dickens character, closely related to and often confused with Arctic Char.
freshwater
California Corbina
A prized surf-zone drum of the California coast, recognized by its uniform silvery body, sloping snout, and single chin barbel.
saltwater
Bar Jack
A sleek, blue-green jack with a dark stripe along its back and a black-and-white striped tail, common on Caribbean and western Atlantic reefs.
reef
Banded Knifefish
An elongated, eel-like South American fish that generates weak electric fields to navigate and communicate in murky water.
freshwater
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
Whitecheek Tang
A dark brown to black surgeonfish set apart by a bright white patch beneath the eye and a narrow orange tail band, commonly seen grazing rubble zones on Indo-Pacific reefs.
reef
Tuna
A fast, powerfully built open-ocean fish capable of high-speed sustained swimming, ranging across warm and temperate seas worldwide in large migratory schools.
pelagic
Weedy Seadragon
A slender, reddish-purple relative of the seahorse decorated with small leaf-like fin projections and yellow stripes, found along the temperate reefs of southern Australia.
reefMiller Lake Lamprey
The Miller Lake lamprey is a tiny, non-parasitic jawless fish historically restricted to a single lake and its tributary streams in Oregon, one of the smallest lamprey species known.
freshwater