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.
Bluefin Killifish
A small, slender killifish native to Florida and the southeastern US, named for the iridescent blue fringe on the male's dorsal and anal fins.
freshwater
Lyretail Killifish
A slender, non-annual West African killifish named for the male's elegant lyre-shaped tail, ranging in color from golden-orange to deep red across its native populations.
freshwater
Midas Blenny
An elongated, brightly colored blenny that ranges from golden-yellow to blue-violet and often mimics the appearance and swimming style of similarly colored basslets. It hovers near reef crevices along drop-offs.
reef
Mahseer
A powerful, large-scaled carp of fast Himalayan rivers, the golden mahseer is prized as one of the hardest-fighting freshwater fish, with a thick, muscular body built for holding in strong current.
freshwater
Asian Arowana
A large, brightly colored freshwater fish prized for its metallic scales and dragon-like appearance, native to Southeast Asian rivers and now considered endangered in the wild.
freshwater
Striped Panchax
A larger South Asian killifish, also called the golden wonder killifish, marked by bold dark horizontal stripes on a golden-olive body. It hunts insects near the surface of ponds and rice paddies.
freshwater
Pristella Tetra
A translucent, pale-golden tetra whose semi-transparent body reveals internal structures, marked by distinctive black-and-yellow fin patches.
freshwater
Bumblebee Fish
A tiny, boldly banded goby popular in brackish aquariums, named for its wasp-like black-and-yellow stripes.
brackish
Kole Tang
A compact, striped surgeonfish with a golden eye-ring, using bristle-like teeth to sweep detritus from reef rock.
reef
Meagre
The Meagre is a large, golden-silver sciaenid of the eastern Atlantic and Mediterranean, among the biggest members of the drum family.
saltwater
Klein's Butterflyfish
A golden-brown Indo-Pacific butterflyfish with a dark eye bar and dusky patches, common on many reefs.
reefLeopard Danio
A spotted color morph of the Zebrafish, the Leopard Danio trades horizontal stripes for a striking pattern of dark spots across a golden body.
freshwater
Senorita
A slender, golden-brown kelp forest wrasse of the California coast known for its cleaning behavior, picking parasites off larger fish such as sheephead.
saltwater
Sarpa Salpa
The sarpa salpa, or salema porgy, is a silvery sparid with golden stripes that grazes on algae over Mediterranean and eastern Atlantic reefs and seagrass beds.
reef
Reef Croaker
A coppery-golden drum associated with Caribbean coral reefs, unusual among croakers for its strong reef affinity rather than open sand or mud habitat.
reef
Gilthead Bream
A deep-bodied Mediterranean and Eastern Atlantic sparid named for the golden band across its forehead. A euryhaline species that moves between coastal reefs and brackish lagoons.
saltwater
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
Walleye
A slender, golden-olive freshwater predator named for its large, glassy, light-reflective eyes that give it excellent low-light vision for hunting at dusk and in murky water.
freshwater
Peacock Bass
A powerful, brilliantly colored cichlid from South America, prized for its golden-green flanks, dark vertical bars, and the distinctive eyespot at the base of its tail.
freshwater
Bicolor Anthias
A small Indo-Pacific reef fish sharply divided in color, with a violet-purple front half and a golden-yellow rear half, forming loose groups above reef structure.
reef
Apache Trout
The Apache trout is a golden-yellow native trout found only in the high-elevation streams of Arizona's White Mountains, and it is the state fish of Arizona following decades of conservation recovery efforts.
freshwater
Tiger Barb
A small, deep-bodied freshwater fish marked with four bold black vertical bars across a golden-orange body, often seen darting energetically in tight schools.
freshwater
Parkinson's Rainbowfish
A large, robust rainbowfish from the eastern rivers of Papua New Guinea, with mature males displaying a striking golden-orange rear half contrasting with a bluish-silver front.
freshwater
Gila Trout
The Gila trout is a rare golden-hued native trout restricted to a handful of remote headwater streams in New Mexico and Arizona, and remains one of North America's most range-limited trout species.
freshwater