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.
Madagascar Rainbowfish
An elongated, silvery rainbowfish from Madagascar's eastern rainforest rivers, recognized by its bold black-edged yellow and red fin markings.
freshwater
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.
freshwater
Threadfin Butterflyfish
A widespread Indo-Pacific butterflyfish identified by a pale yellow body, dark diagonal stripes, a black eye-band, and a distinctive trailing filament on the rear dorsal fin.
reef
Spotted Boxfish
The Spotted Boxfish shows striking sexual dimorphism: males are blue with orange-edged spots and yellow stripes, while females and juveniles are black covered in white spots.
reef
Sebae Clownfish
A dark brown clownfish with a bold yellow tail and two white body bars, native to reefs of the northern Indian Ocean and closely tied to the sebae sea anemone.
reef
Porkfish
A bright yellow Caribbean grunt marked by two bold black diagonal stripes across the head, forming large schools that shelter near reef structure by day.
reef
Coral Beauty Angelfish
The Coral Beauty Angelfish is a small dwarf angelfish with a deep purple-blue body and orange-yellow scale highlights, widely distributed across Indo-Pacific reefs.
reef
Blue Ring Angelfish
An Indo-Pacific angelfish named for the vivid blue ring behind its head, with adults displaying a yellow-brown body crossed by curving electric-blue lines.
reef
Australian Rainbowfish
A widespread, variably colored rainbowfish found across tropical Australian and southern New Guinea waterways, ranging from olive-silver to vivid blue and yellow forms.
freshwater
X-ray Tetra
A translucent coastal South American characin whose see-through body and bold black-white-yellow fin markings make it instantly recognizable.
brackish
Spanish Mackerel
A slender, fast-swimming mackerel of the western Atlantic, easily identified by rows of bright yellow-gold spots scattered along its silvery flanks.
pelagic
China Rockfish
Easily recognized by a bold yellow stripe running down its black body, the China rockfish is a small, secretive reef dweller of the northeastern Pacific.
saltwater
Ribbon Eel
The Ribbon Eel is a slender, brightly colored moray that changes from a black juvenile to a blue male to a yellow female over its lifetime while anchored in a sand burrow.
reef
Weedy Seadragon
A slender, reddish-purple relative of the seahorse decorated with small leaf-like fin projections and yellow stripes, found along the temperate reefs of southern Australia.
reef
Stoplight Parrotfish
A common Caribbean reef fish whose terminal-phase males show brilliant green bodies with a distinctive yellow spot at the tail base resembling a stoplight.
reef
Queen Parrotfish
A blue-green Caribbean parrotfish with a bold yellow band across the snout, commonly seen grazing algae along reef slopes and flats throughout the region.
reef
French Angelfish
A large Caribbean reef angelfish with a jet-black body edged in bright yellow on each scale, giving adults a shimmering, chain-mail-like appearance.
reef
Gold Dust Molly
A selectively bred molly variety combining a golden-yellow base color with fine black speckling, developed in the aquarium trade from wild Poecilia stock.
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
Boeseman's Rainbowfish
Boeseman's Rainbowfish is a vividly two-toned freshwater fish from New Guinea, with a blue-violet front half and a fiery orange-yellow rear half.
freshwater
Talbot's Damselfish
A small damselfish with a yellow head, a pale lavender-grey body, and a distinctive black spot on the rear dorsal fin, found sheltering among branching coral on western Pacific reefs.
reef
Murray River Rainbowfish
A slender, schooling rainbowfish native to Australia's Murray-Darling river system, displaying subtle pink-red stripes and yellow-tinted fins along its silvery-blue body.
freshwater
Golden Topminnow
A small southeastern U.S. killifish whose males show golden-yellow coloring with iridescent blue-green spotting. It favors quiet, well-vegetated ponds, swamps, and slow backwaters.
freshwater
Emperor Angelfish
The Emperor Angelfish is a large, boldly striped reef fish with alternating blue and yellow horizontal lines and a dark mask across the eyes, one of the most recognizable angelfish in the Indo-Pacific.
reef