Fish Identifier

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.

Wolf Herring

Wolf Herring

A slender, silvery predator with a fanged, upturned jaw, the wolf herring hunts small fish in Indo-Pacific coastal waters despite belonging to the herring order.

saltwater
Redlip Halfbeak

Redlip Halfbeak

A slender coastal halfbeak with a needle-thin lower jaw tipped in vivid red, gliding in small schools over shallow tropical Indo-Pacific waters.

saltwater
Pink Skunk Clownfish

Pink Skunk Clownfish

A pale pink anemonefish with a single white stripe running down its back, found living among sea anemones on reefs across the Indo-Pacific.

reef
Orange-lined Triggerfish

Orange-lined Triggerfish

The Orange-lined Triggerfish is a dark green triggerfish covered in bold curving orange stripes, one of the most vividly patterned fish on Indo-Pacific reefs.

reef
Lined Surgeonfish

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
Giant Moray

Giant Moray

The Giant Moray is the largest moray eel species, a densely spotted Indo-Pacific reef predator that shelters in crevices by day and hunts fish and invertebrates at night.

reef
Coral Hind

Coral Hind

A vivid orange-red Indo-Pacific grouper scattered with pale iridescent-blue spots, commonly seen resting near coral heads and reef ledges.

reef
Clown Tang

Clown Tang

A vividly striped surgeonfish with alternating blue, black, and yellow horizontal lines, one of the most aggressively territorial herbivores on shallow Indo-Pacific reef crests.

reef
Blue Devil Damselfish

Blue Devil Damselfish

A small, intensely electric-blue damselfish common on shallow Indo-Pacific reef flats, with males developing an orange-tinted tail during breeding season.

reef
Waspfish

Waspfish

A camouflaged, spiny bottom-dweller with fan-like pectoral fins and a mottled reddish-brown pattern, resting on sand or rubble near reefs across the Indo-Pacific.

saltwater
Timor Halfbeak

Timor Halfbeak

A small, slender halfbeak of the genus Zenarchopterus with a needle-thin lower jaw, common in the brackish estuaries and coastal rivers of the Indo-Pacific near Timor and Southeast Asia.

brackish
Streaked Spinefoot

Streaked Spinefoot

A large silvery-gray rabbitfish marked with fine dark streaks and scattered pale spots, commonly found in estuaries, mangroves, and coastal reefs across the Indo-Pacific.

brackish
Thorny Seahorse

Thorny Seahorse

A spiky Indo-Pacific seahorse covered in long, sharp bony projections, giving it a thorny, almost alien silhouette that helps it disappear among sponges and gorgonian coral.

reef
Threadfin Butterflyfish

Threadfin Butterflyfish

A widespread Indo-Pacific butterflyfish identified by a pale yellow body, dark diagonal stripes, a black eye-band, and a distinctive trailing filament on the rear dorsal fin.

reef
Squarespot Anthias

Squarespot Anthias

A schooling Indo-Pacific anthias; territorial males display a bold rectangular magenta-purple patch on an orange body, while females stay uniformly peach-colored.

reef
Reticulated Pufferfish

Reticulated Pufferfish

A puffer of Indo-Pacific mangroves and estuaries, patterned with fine dark reticulated lines over a pale body and often marked with a network of interconnected markings resembling a map.

brackish
Reef Needlefish

Reef Needlefish

A long, slender, silvery needlefish with elongated toothy jaws, commonly seen cruising just below the surface over Indo-Pacific coral reefs and reef flats.

reef
Comet Grouper

Comet Grouper

A pale grayish-brown Indo-Pacific grouper marked with elongated, comet-shaped pale streaks and spots, along with faint dark bands radiating from the eye.

reef
Blue Ring Angelfish

Blue Ring Angelfish

An Indo-Pacific angelfish named for the vivid blue ring behind its head, with adults displaying a yellow-brown body crossed by curving electric-blue lines.

reef
Sixline Soapfish

Sixline Soapfish

A dark brown-black Indo-Pacific reef fish marked with six pale horizontal stripes, known for secreting a bitter, toxic skin mucus as a defense mechanism.

reef
Skunk Clownfish

Skunk Clownfish

A slender, pale peach-to-pink anemonefish marked by a single white stripe running from snout to tail, living in symbiosis with sea anemones on Indo-Pacific reefs.

reef
Hardyhead Silverside

Hardyhead Silverside

A robust, silvery schooling fish common in shallow lagoons and reef flats across the Indo-Pacific, identified by its broad head and prominent silver midline stripe.

saltwater
Estuarine Stonefish

Estuarine Stonefish

A heavily camouflaged, encrusted-looking fish that lies motionless on muddy estuary and mangrove bottoms across the Indo-Pacific, bearing venomous dorsal spines as a natural defense.

brackish
Cowfish

Cowfish

A horned relative of the boxfish, identified by paired forward-pointing spines above the eyes and a rigid box-shaped body; found in Indo-Pacific lagoons and seagrass beds.

reef