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.
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
Firefish
The Firefish is a slender, white-to-orange goby-like fish with a tall sail-like dorsal fin, known for hovering above its burrow and darting inside when startled.
reef
Ember Parrotfish
The vivid orange-red juvenile color phase of the Redlip Parrotfish, prized in the aquarium trade for its fiery hue before it transforms into a much larger blue-green adult.
reef
Clown Triggerfish
An unmistakable black-bodied Indo-Pacific triggerfish covered in bold white spots below, with yellow-orange lips; wedges into reef crevices using a locking dorsal spine.
reef
Bluespotted Rabbitfish
A vividly colored rabbitfish with a yellow-orange body scattered with small electric-blue spots, commonly seen grazing coral-rich reef flats across the Indo-Pacific.
reef
Ballyhoo
A slender, silvery halfbeak of coastal Atlantic waters, easily recognized by its long lower jaw tipped in red-orange, often seen skittering across the surface in schools.
saltwater
Harlequin Tuskfish
A vividly colored wrasse with a turquoise-blue body crossed by orange bars and prominent protruding tusk-like teeth used to crush hard-shelled prey. It inhabits coral-rich reef slopes across the western Pacific.
reef
Flame Angelfish
The Flame Angelfish is a small, vivid orange-red dwarf angelfish marked with black vertical bars and blue-tipped fins, commonly seen darting among reef crevices in the Pacific.
reef
Cutthroat Trout
A native western North American trout named for the distinctive red-orange slash marks under its jaw, found in an array of subspecies across cold streams and mountain lakes.
freshwater
Dragon Moray
One of the most ornately marked moray eels, easily recognized by its long tubular nostrils resembling horns and a striking mottled orange, white, and black pattern that has made it a favorite subject for underwater photographers.
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
Starry Flounder
The starry flounder is a distinctive North Pacific flatfish recognized by alternating orange and black bands across its fins and rough, star-shaped scales, and notable for tolerating a wide range of salinities.
brackish
Rudd
A deep-bodied European cyprinid known for brassy-gold flanks and vivid orange-red fins, the rudd frequents weedy lakes and slow rivers, feeding near the surface on insects and plants.
freshwater
Redear Sunfish
A deep-bodied sunfish named for the bright red-orange margin on its black ear flap, notable for its specialized diet of snails and other mollusks in warm southern lakes and ponds.
freshwater
Regal Angelfish
The Regal Angelfish is a striking orange-and-blue-striped reef fish with a large dark eye patch and a bold yellow tail, found on well-developed coral reefs across the Indo-Pacific.
reef
Peacock Gudgeon
A vividly colored, peaceful gudgeon from Papua New Guinea, prized in aquariums for its blue-spangled body, orange fins, and calm temperament rare among small predatory fish.
freshwater
Lyretail Killifish
A slender, non-annual West African killifish named for the male's elegant lyre-shaped tail, ranging in color from golden-orange to deep red across its native populations.
freshwater
Moonlight Gourami
A sleek, silvery-green Mekong basin gourami with an iridescent sheen and vivid orange-red pelvic fin filaments, notably lacking the dark body spots seen in many related species.
freshwater
Honey Gourami
A small, peaceful South Asian labyrinth fish whose breeding males flush a warm honey-gold to orange color with a dark throat and belly, making it a popular gentle community fish.
freshwater
Achilles Tang
A striking black surgeonfish with a bold orange-red teardrop marking near its tail and matching scalpel-like tail spine. It inhabits high-surf reef zones across the Pacific.
reef
Tinfoil Barb
A large, fast-swimming barb with brilliant silver, mirror-like scales and orange-red fins, the tinfoil barb inhabits big Southeast Asian rivers and forms sizable shoals in open water.
freshwater
Clarkii Clownfish
A hardy, variably colored anemonefish found across the widest range of any clownfish species, typically dark brown-orange with three white bars, and known for hosting in many different anemone species.
reef
Yellow Perch
A golden-yellow freshwater fish marked by dark vertical bars and orange-tinged fins, native to lakes and slow-moving rivers across North America. It is one of the most abundant and widely recognized panfish species.
freshwater
Bluestripe Pipefish
The bluestripe pipefish is a tiny reef pipefish with a bright blue lateral stripe running along a tan or orange body, often seen hovering near crevices where it also cleans parasites from larger fish.
reef