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.
Warmouth
A stocky, big-mouthed sunfish with red eyes and dark cheek streaks, at home in weedy, sluggish waters and swamps of the eastern United States.
freshwater
Pacific Blackdragon
An eel-like deep-sea dragonfish whose females are entirely jet-black with a long chin barbel, while the tiny, non-feeding males look almost nothing like them.
deepsea
Common Sole
The common sole is a slender, right-eyed flatfish of European coastal waters, recognizable by its elongated oval body and small, curved mouth adapted for nighttime foraging.
saltwater
Antarctic Cod
Antarctic cod is a bottom-dwelling notothenioid fish of the Southern Ocean, adapted to near-freezing water and recognized by its mottled brown, camouflaged body and broad head.
saltwater
Greenland Halibut
A cold-water, deep-sea North Atlantic and Arctic flatfish with a dark body on both sides, a large toothy mouth, and a less flattened posture than typical flounders.
deepsea
Blackstripe Topminnow
A slender freshwater killifish of the central and eastern U.S., identified by a single solid black stripe running from snout to tail. It inhabits quiet pools and slow stream reaches.
freshwater
Blackbarred Halfbeak
A silvery halfbeak marked with faint dark vertical bars, common over seagrass beds and reef flats across the Indo-Pacific.
reef
Barred Halfbeak
A schooling, seagrass-associated halfbeak of the Indo-Pacific with a long, red-tipped lower jaw and faint dark bars along its silvery flanks.
saltwater
Blackfin Tuna
The smallest member of the true tuna genus, this fast schooling fish sports a dark blue-black back and yellow, black-edged finlets, ranging through warm western Atlantic waters.
pelagic
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
Blacktip Shark
A fast, energetic coastal shark named for the black tips on most of its fins, often seen leaping and spinning while chasing schooling fish.
saltwater
Chevron Tang
A dark surgeonfish covered in fine orange chevron-shaped striping that fades to plain brown with age, prized for its dramatic juvenile pattern.
reef
Niger Triggerfish
A deep blue-green triggerfish with reddish teeth and a trailing crescent tail, often seen feeding on plankton above reef slopes.
reef
Atlantic Salmon
An iconic anadromous fish of the North Atlantic, born in cold rivers, maturing at sea, and returning to natal streams to spawn.
freshwater
Bicolor Damselfish
A small reef fish sharply split into a dark front half and a pale rear half, common on Caribbean and western Atlantic coral reefs where it defends algae-covered territories.
reef
Blackfin Clownfish
An orange anemonefish with a single white head bar and distinctive black-edged pelvic and anal fins, endemic to reefs around the Maldives and Sri Lanka.
reef
Springer's Damselfish
A small, dramatic black damselfish with two vivid electric-blue stripes running along the top of its body, found on shallow reefs of the Philippines and Indonesia.
reef
Blackspotted Puffer
The Blackspotted Puffer, also called the dog-faced puffer, is a small reef pufferfish with a gray, yellow, or blue body scattered with a few large dark spots.
reef
Spotted Bass
A compact black bass species with rows of small dark spots below the lateral line, native to the Mississippi and Gulf drainages and often found alongside Largemouth and Smallmouth Bass.
freshwater
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
Green Sunfish
A hardy, aggressive small sunfish with a large mouth and dark greenish-blue body marked with yellow-green flecking, tolerant of poor water conditions where few other sunfish can survive.
freshwater
Cobia
A large, elongated, shark-like fish that roams warm coastal waters worldwide and often follows rays, turtles, and floating structure.
pelagic
Spotted Croaker
A large Indo-Pacific drum with scattered dark spots along its silvery back, common in turbid estuaries and river mouths.
brackish
Mangrove Snapper
A grayish snapper common along mangrove shorelines and estuaries of the western Atlantic, showing a faint dark stripe through the eye and a pointed, angular head.
brackish