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.
Harlequin Rasbora
A small, deep-bodied freshwater fish with a coppery-orange body and a distinctive black triangular patch covering the rear half, native to the blackwater streams of Southeast Asia.
freshwater
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
Catalina Goby
A tiny, vividly colored goby with electric blue bands over a red-orange body, found perched on rocky reefs and kelp holdfasts off the Pacific coast.
reef
Peacock Wrasse
A colorful Mediterranean and eastern Atlantic wrasse whose males display vivid green-blue bodies with orange spots and blue facial stripes, commonly seen darting among rocky reefs and seagrass beds.
saltwater
Ocellaris Clownfish
A small orange-and-white clownfish that lives in a mutualistic partnership with sea anemones on Indo-Pacific reefs. It is one of the most familiar reef fish species due to its bright coloring and anemone-dwelling behavior.
reef
Longsnout Seahorse
A slender, long-snouted seahorse native to the western Atlantic that anchors itself to soft corals and mangrove roots with its prehensile tail. It comes in a wide range of colors, from yellow and orange to red and black.
reef
Tiger Barb
A small, deep-bodied freshwater fish marked with four bold black vertical bars across a golden-orange body, often seen darting energetically in tight schools.
freshwater
Redlip Blenny
A dark, elongated blenny with a distinctive bright red-orange lip, common on shallow Caribbean and western Atlantic reef edges where it grazes algae from rock and coral.
reef
Rainbow Goby
A tiny, iridescent freshwater goby whose males display shimmering blue-green and orange coloration, found clinging to rocks in fast mountain streams across the Indo-Pacific.
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
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
Six Line Wrasse
The Six Line Wrasse is a small, brightly colored reef fish with six narrow orange stripes running along a purple-blue body and a black spot near the tail, often darting through coral rubble.
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
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
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