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.
Mediterranean Flyingfish
The most common flyingfish of the Mediterranean Sea, with long, mottled pectoral fins and a slender body built for gliding above coastal pelagic waters.
pelagic
Leopard Shark
A slender, boldly patterned houndshark common in shallow California bays, easily recognized by its dark saddle-like blotches and spots.
cartilaginous
Leopard Coral Grouper
A striking Indo-Pacific reef predator with a reddish-orange body densely covered in small electric-blue spots, giving it a leopard-like pattern.
reef
Horse-eye Jack
A deep-bodied, silvery jack with an oversized eye, commonly seen in large stationary schools around Caribbean and Florida reefs and harbors.
reef
King Mackerel
A large, streamlined mackerel of the warm western Atlantic, prized as a fast offshore game fish and recognizable by its silvery, unmarked body.
pelagic
Grey Gurnard
A bottom-dwelling gurnard with an armored, pale-spotted grey-brown back and large bluish pectoral fins, common across sandy shelf waters of Europe.
saltwater
Great White Shark
A massive, torpedo-shaped predator found in cool coastal and offshore waters worldwide, easily recognized by its sharp countershading and crescent-shaped tail.
cartilaginous
Guitarfish
A shark-like ray with a flattened, guitar-shaped body that blends features of sharks and rays, common on sandy coastal seabeds of the eastern Atlantic and Mediterranean.
cartilaginous
Giant Mudskipper
The largest common mudskipper species, a heavy-bodied, predatory amphibious goby that patrols mangrove mudflats across South and Southeast Asia.
brackish
Green Jack
The Green Jack is a schooling eastern Pacific jack with a greenish-blue back, silvery sides, and yellowish lower fins, common in coastal surface waters.
pelagic
Giant Trevally
The largest of the trevallies, a powerful, deep-bodied predator of Indo-Pacific reefs and lagoons known for its steep head profile and ferocious ambush strikes.
reef
Gag Grouper
The gag grouper is an elongated, grey-brown grouper of the western Atlantic recognized by its faint worm-like markings and slender build compared to other groupers.
reef
Galapagos Shark
A large, robust gray shark commonly encountered around remote oceanic islands, closely resembling the Dusky and Silky Sharks but slightly stockier.
saltwater
Freshwater Moray
An unusual moray that spends much of its adult life in rivers and estuaries rather than the sea, identified by its slender olive-brown body and fine dark mottling.
brackish
Deep-sea Lizardfish
A hardy abyssal ambush predator that rests motionless on the deep seafloor, using a large tooth-lined mouth to seize whatever prey passes close by.
deepsea
Denison Barb
A striking torpedo-shaped barb endemic to fast hill streams of India's Western Ghats, known for its bold red-black-yellow stripe and endangered status.
freshwater
Coelacanth
The coelacanth is an ancient, deep-dwelling lobe-finned fish once known only from fossils, famously rediscovered alive off South Africa in 1938.
deepsea
Chinese Paddlefish
The Chinese paddlefish was a giant, sword-snouted freshwater fish once found in the Yangtze River, declared extinct in the early 2020s after decades of decline.
freshwater
Congo Tetra
A large, iridescent tetra from the Congo River basin, with shimmering blue-violet-gold flanks and, in males, a distinctive flowing, frayed tail fin.
freshwater
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
Chevron Tang
A dark surgeonfish covered in fine orange chevron-shaped striping that fades to plain brown with age, prized for its dramatic juvenile pattern.
reef
Bluefish
An aggressive, fast-swimming coastal predator famous for feeding in frenzied schools and slicing through baitfish with razor-sharp teeth.
pelagic
Candiru
A tiny, translucent Amazonian catfish that feeds by attaching to the gills of larger fish and consuming their blood, one of the few parasitic vertebrates known.
freshwater
Blue Tang
A vivid royal-blue reef fish with a black palette-shaped marking and a bright yellow tail, popularized worldwide after appearing in animated film.
reef