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.
Spangled Emperor
The spangled emperor is a large, pale grey-green emperor fish of the Indo-Pacific, marked by fine blue spangles on its scales and a strong, crushing jaw for cracking shellfish.
reef
Black Rockfish
A dark, deep-bodied schooling rockfish common over rocky reefs and kelp forests along the Pacific coast, often seen in large surface-oriented aggregations.
saltwater
Graysby
The graysby is a small, reddish-brown reef grouper of the tropical western Atlantic, densely covered in pale spots and marked with a few larger dark blotches along its back.
reef
Senegal Bichir
An elongated, primitive-looking freshwater fish with a row of small spiny finlets along its back and paired lung-like breathing organs, retaining features from ancient ray-finned fish ancestors.
freshwater
Reef Shark
A common, streamlined shark patrolling Indo-Pacific coral reefs, recognized by its broad black-edged tail fin and stout gray body.
reef
Sauger
A slender, olive-gold relative of the walleye, best known for the rows of black spots on its spiny dorsal fin and its love of murky river currents.
freshwater
Weakfish
The Weakfish is an iridescent greenish-bronze sciaenid with diagonal spotted markings, found in mid-Atlantic estuaries and coastal waters of the U.S.
brackish
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
Canary Rockfish
A vivid orange-and-gray rockfish of the Pacific continental shelf, easily recognized by its bright orange fins and mottled orange-and-gray body pattern.
saltwater
Galapagos Shark
A large, robust gray shark commonly encountered around remote oceanic islands, closely resembling the Dusky and Silky Sharks but slightly stockier.
saltwater
Giant Mudskipper
The largest common mudskipper species, a heavy-bodied, predatory amphibious goby that patrols mangrove mudflats across South and Southeast Asia.
brackish
Snowy Grouper
A dark gray-brown deepwater grouper of the western Atlantic; juveniles are boldly marked with white spots that fade to a plainer, darker pattern in large adults.
deepsea
Panther Grouper
An unmistakable Indo-Pacific grouper with a pale gray body covered in round black spots, a small head, and a distinctive humped, sloping forehead profile.
reef
Midas Cichlid
A large, variably colored Central American cichlid, ranging from mottled gray to solid gold-orange, known for its bold and often combative nature.
freshwater
Snook
A sleek, silvery predator with a bold black lateral stripe and a distinctive sloped, pointed snout, closely tied to mangrove shorelines and warm coastal estuaries.
brackish
Java Rabbitfish
A greenish-brown rabbitfish patterned with fine wavy vermiculated markings, commonly found in mangrove-lined estuaries and brackish coastal waters of the Indo-Pacific.
brackish
Bumblebee Goby
The Bumblebee Goby is a tiny, boldly banded fish resembling its namesake insect, found in brackish mangrove and estuarine waters of Southeast Asia.
brackish
Green Spotted Puffer
A small, popular aquarium puffer with a bright green, black-spotted back and white belly, native to brackish estuaries and mangrove creeks across Southeast Asia.
brackish
Barred Mudskipper
An amphibious mangrove goby with bulging eyes and muscular fins that lets it crawl and hop across exposed mud at low tide throughout the Indo-Pacific.
brackish
Goliath Grouper
One of the largest bony fish on Atlantic reefs, the goliath grouper is a massive, mottled brown ambush predator that shelters around wrecks, caves, and mangrove-lined shorelines.
reef
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
Slender Giant Moray
The longest of all moray eel species, this extremely elongated, olive-grey eel patrols muddy estuaries and mangrove channels across the Indo-Pacific rather than typical coral reef.
brackish
Malabar Grouper
The Malabar grouper is a large, olive-grey Indo-Pacific grouper covered in dark blotches and small pale spots, found across coastal reefs, estuaries, and mangrove-lined coasts.
reef
Atlantic Mudskipper
An amphibious goby that hops and skips across mangrove mudflats using muscular pectoral fins, breathing air through its skin and mouth lining when out of water.
brackish