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.
Asian Arowana
A large, brightly colored freshwater fish prized for its metallic scales and dragon-like appearance, native to Southeast Asian rivers and now considered endangered in the wild.
freshwater
Lined Seahorse
A medium-sized seahorse of the western Atlantic coast, variably colored from black to bright orange, often marked with fine pale lines on the neck and named for these subtle streaks.
saltwater
Bluegill
A common North American sunfish recognized by its deep, rounded body and the dark blotch on its gill cover, widely found in lakes and ponds and popular with anglers.
freshwater
Burbot
The burbot is the only fully freshwater member of the cod family, an eel-shaped, mottled predator found in cold lakes and rivers across the Northern Hemisphere.
freshwater
Silver Scat
A disc-shaped, silvery fish marked with dark vertical bars, found schooling in brackish estuaries and mangroves across the Indo-Pacific and northern Australia.
brackish
Pacific Hake
The Pacific hake is a slender, migratory relative of true cod found throughout the northeastern Pacific, easily told apart by its two dorsal fins, sharp-toothed jaws, and complete lack of a chin barbel.
pelagic
Cownose Ray
A migratory, schooling ray with a distinctive indented snout, famous for traveling in dense groups of hundreds along coastal waters.
pelagic
Kissing Gourami
A large, elongated Southeast Asian gourami famous for its thick, protrusible lips, which it uses to graze algae and to engage in "kissing" contests, an actual test of strength between rivals.
freshwater
Horseface Loach
The Horseface Loach is a slender, burrowing loach recognized by its elongated, downturned snout, native to sandy-bottomed rivers of Southeast Asia.
freshwater
Rummynose Tetra
A slender silvery tetra known for its bright red-orange snout and a bold black-and-white striped tail, prized for tight, synchronized shoaling.
freshwater
Bluespine Unicornfish
A large Indo-Pacific tang with a bony forehead horn and paired fixed blue-white spines at the tail base, browsing brown macroalgae on coral reefs and reef flats.
reef
Atlantic Bluefin Tuna
A massive, torpedo-shaped, deep blue-backed tuna built for speed and long-distance migration across the Atlantic Ocean and Mediterranean Sea.
pelagic
Pearl Danio
A slender, iridescent danio with a shifting pearly sheen of blue, pink, and gold along its flanks, native to fast-flowing Southeast Asian streams.
freshwaterGuppy
A small livebearing fish native to northeastern South America, famous for the males' vividly colored, ornately shaped tails and its worldwide popularity in the aquarium hobby.
freshwater
Red Snapper
A rosy-red snapper of the Gulf of Mexico and southeastern U.S. coast, recognized by its sloped profile, sharp triangular teeth, and bright red eyes.
reefSailfin Flyingfish
A small, two-winged flyingfish with a tall, sail-like dorsal fin and blunt snout, found gliding over warm coastal and offshore surface waters worldwide.
pelagic
Silver Dollar
A disc-shaped, silvery Amazonian characin closely related to piranhas but almost entirely herbivorous, known for grazing flooded forest vegetation.
freshwater
Ribbon Eel
The Ribbon Eel is a slender, brightly colored moray that changes from a black juvenile to a blue male to a yellow female over its lifetime while anchored in a sand burrow.
reef
Grunt Sculpin
A small, oddly shaped sculpin with an elongated, beak-like snout and orange-and-brown striped body, famous for mimicking the appearance of an empty giant acorn barnacle shell.
saltwater
Climbing Perch
A hardy Southeast Asian labyrinth fish famous for its ability to breathe air and wriggle overland between water bodies using its spiny gill covers and pectoral fins.
freshwaterBluntnose Flyingfish
A small flyingfish with a short, blunt snout and large wing-like pectoral fins, gliding above the open tropical Atlantic.
pelagic
Senorita
A slender, golden-brown kelp forest wrasse of the California coast known for its cleaning behavior, picking parasites off larger fish such as sheephead.
saltwater
Pipefish
A slender, elongated relative of the seahorse with a rigid, ring-plated body and tubular snout, commonly found camouflaged among seagrass and algae in coastal waters worldwide.
saltwater
Bonefish
A silvery, torpedo-shaped fish of shallow tropical flats, nicknamed the 'grey ghost' for its uncanny ability to vanish against sandy bottoms.
saltwater