News
SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliamentSpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliament
EveryFish

All fish

304 fish so far, best known first. 887 more are on the list to be written.

🇧🇷 Brazil and 2 moreBlack tetra Small freshwater characin with dark vertical barsOther · Rivers and lakes 🇧🇷 BrazilRummy-nose tetra Small Amazonian characin with a red head and striped tail.Other · Rivers and lakes · 1924 🇺🇸 United States and 1 moreLongfin smelt Small anadromous fish of the North Pacific coastOther · Rivers and lakes 🇧🇷 BrazilEmber tetra Tiny orange freshwater fish from BrazilOther · Rivers and lakes · 1987 Bleeding heart tetra WorldBleeding heart tetra Small Amazonian fish with a red flank spotOther · Rivers and lakes · 1943 Latin America and the CaribbeanPenguinfish Small striped characin from South American riversOther · Rivers and lakes 🇧🇷 BrazilLemon tetra Small yellow freshwater fish from the Amazon basin.Other · Rivers and lakes 🇧🇷 Brazil and 1 moreX-ray tetra Small translucent South American freshwater fish popular in home aquariums.Other · Rivers and lakes · 1894 🇨🇴 ColombiaEmperor tetra A small freshwater fish from Colombia, prized in the aquarium trade for its striking colours and distinct sexual dimorphOther · Rivers and lakes 🇧🇷 Brazil and 4 moreMarbled hatchetfish A small South American freshwater fish kept in aquariums for its unique shape and surface-dwelling habits.Other · Rivers and lakes · 1864 🇻🇪 VenezuelaDiamond tetra Small Venezuelan freshwater fish with violet finsOther · Rivers and lakes · 1920 🇧🇴 Bolivia and 3 moreCommon hatchetfish Small freshwater fish from South AmericaOther · Rivers and lakes WorldSplash tetra Small South American fish that lays eggs on leaves above waterOther · Rivers and lakes 🇨🇳 China and 4 moreThree spot gourami Hardy freshwater fish native to Southeast Asia with distinct side spots.Other · Rivers and lakes 🇰🇭 Cambodia and 3 moreMoonlight gourami A small, silvery labyrinth fish native to Southeast Asian rivers and swamps.Other · Rivers and lakes Southeast AsiaPygmy gourami A tiny freshwater fish from Southeast Asia known for its iridescent colours and ability to make sounds.Other · Rivers and lakes Chocolate gourami 🇲🇾 MalaysiaChocolate gourami Small maternal mouthbrooding fish from Southeast Asian peat swampsOther · Rivers and lakes 🇨🇳 China and 1 moreParadise fish Aggressive freshwater gourami from East AsiaOther · Rivers and lakes WorldPeters's elephantnose fish A West African freshwater fish that navigates using weak electric pulses.Other · Rivers and lakes WorldButterflyfish A global family of colourful tropical reef fish known for their bright patterns and coral diets.Reef fish · Coasts and shelves · 1815 WorldParrotfish Reef-dwelling wrasses with beak-like teeth that grind coral into sand.Reef fish · Coasts and shelves WorldSurgeonfish Marine fish family with sharp tail spines and algae diets.Reef fish · Coasts and shelves WorldClownfish Small reef fish living in sea anemones.Reef fish · Coasts and shelves · 1801 WorldWrasse A large family of colourful marine fish known for sex change and cleaning symbiosis.Reef fish · Coasts and shelves WorldDamselfish Small marine fish known for aggressive territorial behaviour and reef farming.Reef fish · Coasts and shelves WorldLionfish Venomous marine fish of the genus Pterois known for striking stripes and invasive spread.Ray · Coral reefs · 1900 WorldTriggerfish Armoured reef fish with a locking dorsal spineReef fish · Coasts and shelves · 1810 WorldBicolor blenny A small Indo-Pacific marine fish popular in home aquariums.Other · Open ocean 🇺🇸 United States and 1 moreRazorback sucker Endangered river fish with a distinctive back ridgeOther · Rivers and lakes WorldMoray eel A global family of elongated marine eels known for their powerful jaws and patterned skin.Eel · Coasts and shelves WorldBoxfish Armoured fish with a box-like body and toxic skin secretions.Other · Coasts and shelves · 1810 WorldPorcupinefish Spiny marine fish that inflate into a defensive sphere to deter predators.Other · Coasts and shelves WorldGoatfish Benthic fish with chin barbels found in tropical and temperate waters worldwide.Other · Coasts and shelves · 1758 WorldCardinalfishes Small, colourful reef fish known for male mouthbrooding.Reef fish · Coasts and shelves 🇲🇽 Mexico and 2 moreMexican molly Small livebearing fish from Mexico and Central America.Livebearer · Rivers and lakes 🇺🇸 United States and 1 moreSailfin molly Small livebearing fish with a large dorsal fin in males.Livebearer · Rivers and lakes · 1821 🇲🇽 Mexico and 1 moreSouthern platyfish Small live-bearing freshwater fish from Central AmericaLivebearer · Rivers and lakes 🇲🇽 MexicoVariable platyfish Small livebearing fish from Mexico popular in home aquariumsLivebearer · Rivers and lakes 🇧🇷 Brazil and 2 moreCardinal tetra Small freshwater fish with a bright red belly and iridescent blue stripe.Other · Rivers and lakes · 1956 🇲🇽 Mexico and 1 moreGreen swordtail A hardy live-bearing fish popular in home aquariums.Livebearer · Rivers and lakes · 1848 🇧🇷 BrazilBlack neon tetra Small freshwater characin with white and black stripes, popular in the aquarium trade.Other · Rivers and lakes WorldWhitetail dascyllus A small Indo-Pacific reef fish with bold black and white stripes.Reef fish · Coasts and shelves WorldBigeye trevally A large marine fish found in tropical oceans, known for its nocturnal hunting and distinctive dark dorsal fin.Other · Coasts and shelves · 1825 🇺🇸 United StatesDevils Hole pupfish A tiny fish found only in one cavern in Nevada.Other · Rivers and lakes · 1930 WorldThreespot dascyllus A small black and white reef fish with three distinct spots.Reef fish · Coral reefs WorldBluefin trevally Large tropical marine predator with electric blue finsPerch-like · Coasts and shelves · 1833 WorldSquirrelfish Nocturnal reef fish of the subfamily Holocentrinae found in Atlantic and Indo-Pacific waters.Reef fish · Coasts and shelves WorldTrumpetfish Marine fish with a long tubular snout found in tropical reefs worldwide.Reef fish · Coasts and shelves · 1766

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

The weekly digest

Every Monday: the fish of the day, new pages on EveryFish, and the conferences and anniversaries of the week ahead.