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.
Grey Gurnard
A bottom-dwelling gurnard with an armored, pale-spotted grey-brown back and large bluish pectoral fins, common across sandy shelf waters of Europe.
saltwater
Sterba's Corydoras
A popular armored catfish with a spotted body and bright orange pectoral fins, native to river tributaries along the Brazil-Bolivia border.
freshwater
Rock Goby
A small, mottled goby common in rocky tide pools along European and North African coasts, easily spotted darting between rocks at low tide.
saltwater
Giant Moray
The Giant Moray is the largest moray eel species, a densely spotted Indo-Pacific reef predator that shelters in crevices by day and hunts fish and invertebrates at night.
reef
Wolf Eel
The Wolf Eel is a large, spotted, eel-shaped fish of North Pacific rocky reefs that forms long-term pairs and cooperatively guards its eggs in a shared den.
saltwater
Barramundi Cod
The Australian common name for the panther grouper, a pale gray, black-spotted reef grouper instantly recognizable by its small head and steeply humped forehead.
reef
Weakfish
The Weakfish is an iridescent greenish-bronze sciaenid with diagonal spotted markings, found in mid-Atlantic estuaries and coastal waters of the U.S.
brackish
Cuckoo Catfish
A spotted African catfish from Lake Tanganyika famous for a brood-parasitic strategy in which it sneaks its own eggs into the mouths of incubating cichlids.
freshwater
Arctic Grayling
The Arctic grayling is a cold-water salmonid recognized by its tall, colorfully spotted dorsal fin, inhabiting clean rivers and lakes across northern North America and Siberia.
freshwater
Common Archerfish
A deep-bodied, silvery fish famed for spitting jets of water to knock insects off overhanging vegetation into the water.
brackish
Ringed Pipefish
The ringed pipefish is an alternate name for the vividly banded Dunckerocampus dactyliophorus, named for the many bold rings encircling its slender body from head to its yellow, black-spotted tail fin.
reef
Pyjama Cardinalfish
A small, boldly patterned reef fish with a yellow-spotted rear half, a dark bar through the eye, and large eyes suited to nocturnal feeding. It shelters among coral branches and sea urchin spines by day.
reef
Salmon
A large anadromous fish that hatches in freshwater rivers, migrates to the ocean to mature, and returns upriver to spawn, prized as an iconic sport fish.
freshwater
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
Summer Flounder
The summer flounder, also called fluke, is a left-eyed flatfish common along the US Atlantic coast, prized as a popular sport fish and known for its mottled camouflage pattern.
saltwater
Largemouth Bass
A robust, olive-green freshwater fish with a distinctive dark lateral stripe and a very large mouth, one of North America's most popular sport fish now established worldwide.
freshwater
Smallmouth Bass
A bronze-green freshwater bass native to eastern North America, prized as a popular sport fish and recognized by its vertical dark bars and reddish eyes. It favors clear, rocky rivers, streams, and lakes.
freshwater