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.

Lemon Sole

Lemon Sole

A thick-bodied northeastern Atlantic flatfish with smooth, slippery, mottled reddish-brown skin, a small mouth, and a preference for firm sand or gravel seabeds.

saltwater
Lemon Tetra

Lemon Tetra

A pale yellow tetra from the Amazon basin, easily recognized by its lemon-tinted body and black-edged anal fin bordered in yellow.

freshwater
Lemon Shark

Lemon Shark

A stocky, yellow-brown coastal shark named for its sandy coloration, recognized by two nearly equal-sized dorsal fins, common in shallow mangrove and reef habitats of the western Atlantic and eastern Pacific.

cartilaginous
Yellowtail Damselfish

Yellowtail Damselfish

A dark, deep-bodied Caribbean damselfish with a bright yellow tail, known for aggressively farming algae gardens.

reef
Domino Damselfish

Domino Damselfish

A hardy black damselfish marked with three bold white spots as a juvenile, named for its resemblance to a domino tile.

reef
Bicolor Damselfish

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
Yellowbelly Damselfish

Yellowbelly Damselfish

A small blue-grey damselfish with a bright yellow underside, found sheltering around coral and rubble on shallow reefs of the western Pacific.

reef
Talbot's Damselfish

Talbot's Damselfish

A small damselfish with a yellow head, a pale lavender-grey body, and a distinctive black spot on the rear dorsal fin, found sheltering among branching coral on western Pacific reefs.

reef
Springer's Damselfish

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
Neon Damselfish

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.

reef
Humbug Damselfish

Humbug Damselfish

A small white damselfish marked with three bold black bars and a clear tail, living in tight groups among the branches of Indo-Pacific coral colonies.

reef
Fourstripe Damselfish

Fourstripe Damselfish

A white damselfish marked with three bold black bars plus a black tail, forming a four-banded pattern as it hovers around branching coral on Indo-Pacific reefs.

reef
Blue Damselfish

Blue Damselfish

A small, brilliant electric-blue damselfish that fiercely defends its patch of shallow Indo-Pacific reef.

reef
Azure Damselfish

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
Allen's Damselfish

Allen's Damselfish

A slender, iridescent blue damselfish with a bright yellow tail, native to reefs of the Coral Triangle and known for its striking two-tone coloration.

reef
Yellowtail Blue Damselfish

Yellowtail Blue Damselfish

A small, vividly electric-blue damselfish with a sharply contrasting bright yellow tail, common on shallow reef flats and lagoons of the western Pacific.

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
Three-Spot Domino Damselfish

Three-Spot Domino Damselfish

A round, jet-black damselfish marked with three white spots, commonly seen sheltering among sea anemones and branching corals on Indo-Pacific reefs.

reef

Winter Flounder

The winter flounder is a small, right-eyed flatfish of the northwest Atlantic, named for its habit of moving into shallow coastal bays during the colder months.

saltwater
Lemonpeel Angelfish

Lemonpeel Angelfish

A small, bright yellow Pacific dwarf angelfish with a blue ring around the eye and blue edging on the fins.

reef
Electric Yellow Cichlid

Electric Yellow Cichlid

A vividly yellow mbuna cichlid endemic to Lake Malawi's rocky shorelines, popular in aquariums for its bright, almost uniform coloration and relatively peaceful temperament.

freshwater
Sergeant Major

Sergeant Major

A common silvery damselfish marked with five bold black vertical bars, resembling military rank stripes, found on shallow tropical reefs.

reef
Threespot Dascyllus

Threespot Dascyllus

A robust black-bodied damselfish bearing three white spots in youth, one of the most widespread dascyllus species on Indo-Pacific reefs.

reef
Garibaldi

Garibaldi

A large, brilliant orange damselfish and the official marine state fish of California, found among rocky reefs and kelp forests of the temperate northeast Pacific.

reef