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.
Celebes Rainbowfish
A slender, sail-finned rainbowfish endemic to Sulawesi, easily recognized by its tall, translucent dorsal and anal fins edged in black and yellow.
freshwaterGuppy
A small livebearing fish native to northeastern South America, famous for the males' vividly colored, ornately shaped tails and its worldwide popularity in the aquarium hobby.
freshwater
Kribensis
A small, colorful West African dwarf cichlid best known for the vivid magenta belly females display, especially during courtship.
freshwater
Wolf Cichlid
One of the largest Central American cichlids, this powerful predator combines vivid turquoise and orange coloration with formidable jaws.
freshwater
Red Rainbowfish
A striking, deep-bodied rainbowfish endemic to Lake Sentani in Papua, New Guinea, with adult males turning an intense salmon-red as they mature.
freshwater
Neon Rainbowfish
A small, brilliantly colored rainbowfish from New Guinea whose males flash iridescent blue-violet when displaying to rivals or mates.
freshwater
Rachovi Killifish
A vividly colored annual killifish from coastal Mozambique, with males showing a turquoise body and a tricolor red-yellow-blue tail. It lives in temporary floodplain pools near Beira.
freshwater
Salmon-red Rainbowfish
A deep-bodied rainbowfish endemic to Lake Sentani in Papua, Indonesia, where mature males develop a vivid overall salmon-red to orange coloration.
freshwater
Sepik Rainbowfish
A deep-bodied rainbowfish from the floodplain lakes and swamps of the Sepik River in Papua New Guinea, covered in unusually fine, numerous scales.
freshwater
Spotted Seatrout
A slender estuarine predator of the southeastern United States, recognized by the bold black spots scattered across its silvery back and dorsal fin.
brackish
Kokanee Salmon
Kokanee are a landlocked, non-migratory form of sockeye salmon that spend their entire life in freshwater lakes, turning bright red during their autumn spawning run into tributary streams.
freshwaterDesert Rainbowfish
A hardy rainbowfish subspecies adapted to the arid rivers and isolated springs of central Australia, able to withstand extreme temperature swings and prolonged drought.
freshwater
Banded Rainbowfish
A highly variable, boldly patterned rainbowfish from northeastern Australia, often showing multiple dark horizontal stripes and vivid regional color forms.
freshwaterWhite Weakfish
A slender, pale silvery-white weakfish common in estuaries and coastal lagoons along the South American Atlantic coast.
brackish
Madagascar Rainbowfish
An elongated, silvery rainbowfish from Madagascar's eastern rainforest rivers, recognized by its bold black-edged yellow and red fin markings.
freshwater
Emerald Rainbowfish
A deep-bodied rainbowfish endemic to Lake Wanam in Papua New Guinea, with mature males displaying a brilliant iridescent emerald-green sheen.
freshwater
Eastern Rainbowfish
A widespread eastern Australian subspecies of the splendid rainbowfish complex, showing blue-green to golden flanks and yellow-orange fins along coastal Queensland rivers.
freshwater
Forktail Rainbowfish
A tiny, colorful blue-eye rainbowfish from New Guinea named for its distinctively forked, yellow-edged tail fin.
freshwater
Turquoise Rainbowfish
An electric-blue rainbowfish endemic to Lake Kutubu in Papua New Guinea's highlands, prized for its uniform turquoise sheen.
freshwaterYellowfin Rainbowfish
A slender rainbowfish endemic to Misool Island in Indonesia's West Papua region, named for its bright yellow unpaired fins that contrast with its silvery-olive body.
freshwater
Threadfin Rainbowfish
A tiny, delicate rainbowfish famed for the male's elongated, thread-like extensions on the dorsal and anal fins that trail behind the body.
freshwater
Dolly Varden
A char of Pacific coastal rivers named for a colorfully dressed Dickens character, closely related to and often confused with Arctic Char.
freshwater
Coral Grouper
The coral grouper is a vivid orange-red reef fish covered in small electric-blue spots, commonly seen darting among coral heads across the Indo-Pacific.
reef
Lake Wanam Rainbowfish
A deep-bodied rainbowfish endemic to the small crater Lake Wanam in Papua New Guinea, with males showing rich orange-red body coloration.
freshwater