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.
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.
reefPacific Bluefin Tuna
A massive, warm-bodied tuna capable of ocean-basin migrations across the entire North Pacific, recognized by its deep, torpedo-shaped body and short pectoral fins.
pelagic
Bluefin Trevally
A vividly colored reef jack covered in electric-blue spots, with matching blue fins, patrolling coral reefs across the Indo-Pacific.
reef
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
Majestic Angelfish
A boldly patterned western-Pacific angelfish with orange body, blue-edged bands, and a blue lower body.
reef
Azure Damselfish
A small, vividly blue damselfish common on Indo-Pacific reef flats and lagoons, easily spotted flitting among coral rubble in loose groups.
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
Bluebanded Sea Bream
An Indo-Pacific reef fish, actually a snapper, marked by diagonal electric-blue bands on yellow and trailing fin filaments in adults.
reef
Peacock Grouper
The peacock grouper is a dark-bodied reef predator patterned with bright blue spots and pale bars, native to the Indo-Pacific and introduced to Hawaiian waters.
reef
Lined Surgeonfish
A boldly striped blue, black, and yellow tang that fiercely defends algal-turf patches on shallow, wave-exposed reef crests across the Indo-Pacific.
reef
Sailfin Snapper
The sailfin snapper is a striking Indo-Pacific reef fish with blue diagonal stripes, yellow fins, and a tall, flowing dorsal fin, often seen over sand patches near coral reefs.
reef
Neon Damselfish
A small, brilliant iridescent blue damselfish with a touch of yellow on the tail, commonly seen in loose groups over rubble and coral on Indo-Pacific reefs.
reefGreen Chromis
The Green Chromis is a small, shimmering blue-green damselfish that forms large schools hovering above branching coral heads on Indo-Pacific reefs.
reef
Ringtail Surgeonfish
A blue-grey Indo-Pacific tang identified by the narrow white ring encircling its tail base; common on coral and rocky reefs from East Africa to Hawaii.
reef
Eyestripe Surgeonfish
An Indo-Pacific tang with fine blue pencil-lines over a yellow-brown body and a distinctive yellow stripe through the eye; notably long-lived, reaching nearly 30 years.
reef
Whitetail Surgeonfish
A slender, dark-bodied tang with a strikingly pale, forked tail, often seen hovering in groups over Indo-Pacific reef drop-offs to feed on drifting zooplankton.
reef
Brown Surgeonfish
A small, plain brown Indo-Pacific tang that is nonetheless one of the most abundant algae-grazing reef fish, playing a key role in controlling reef algal growth.
reef
Semicircle Angelfish
A large Indo-Pacific angelfish; adults are greenish-brown with blue-speckled fins and blue face lines.
reef
Lemonpeel Angelfish
A small, bright yellow Pacific dwarf angelfish with a blue ring around the eye and blue edging on the fins.
reef
Koran Angelfish
A large Indo-Pacific angelfish whose adults show a blue-green body scattered with pearly blue spots and lines, while striking juveniles display concentric blue and white circular bands.
reef
Passer Angelfish
An eastern-Pacific angelfish with a dark blue body, a single white vertical bar, and a yellow tail.
reef
Picasso Triggerfish
A boldly patterned triggerfish with geometric blue, yellow, and black markings, common on shallow Indo-Pacific reef flats.
reef
Vermiculated Angelfish
A small pygmy-group angelfish with a bold yellow head, blue-black body etched with fine wavy vermiculated blue lines, commonly seen darting around coral rubble on Indo-Pacific reefs.
reef
Yellowtail Wrasse
A striking Indo-Pacific wrasse whose bright red spotted juveniles transform into green-blue adults with a yellow tail.
reef