FISH ATLASDiscover what makes each fish different

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Ornamental fish

24 groups

Start with a picture even if you do not know the name. Choose a group, compare distinguishing features, then open a species profile for size, lifespan and care requirements.

Tetras and small characins

75 speciesView all 75 species →

Neon tetra — AI-generated side-view illustration

Neon tetra3 cm SL

Cardinal tetra — AI-generated side-view illustration

Cardinal tetra3.5 cm SL

Ember tetra — AI-generated side-view illustration

Ember tetra2 cm SL

Firehead tetra — AI-generated side-view illustration

Firehead tetraLength unknown

Black skirt tetra — AI-generated side-view illustration

Black skirt tetra6 cm SL

Emperor tetra — AI-generated side-view illustration

Emperor tetra4.2 cm SL

Rasboras and danios

19 speciesView all 19 species →

AI illustration of Trigonostigma heteromorpha

Harlequin rasbora4.5 cm · standard length

AI illustration of a left-facing adult male wild-color zebrafish with short fins and blue horizontal stripes extending onto the tail

Zebra danioAbout 5–6 cm · basis unverified

Celestial pearl danio — left-facing AI-generated natural-coloured adult male, not a photograph

Celestial pearl danio2.1 cm SL · source maximum

Chili rasbora — left-facing AI-generated natural-coloured adult male, not a photograph

Chili rasbora2 cm SL · source maximum

Lambchop rasbora — left-facing AI-generated natural-coloured adult male, not a photograph

Lambchop rasbora3 cm SL · source maximum

Green neon rasbora — left-facing AI-generated natural-coloured adult male, not a photograph

Green neon rasbora2 cm SL · source maximum

Barbs and other cypriniforms

22 speciesView all 22 species →

Bala Shark natural adult facing left, AI-generated illustration

Bala SharkTypical adult TL unknown · source 35 cm SL

Chinese Barb natural adult facing left, AI-generated illustration

Chinese BarbTypical adult TL unknown · source 7.5 cm SL

Red-tailed tinfoil barb natural adult facing left, AI-generated illustration

Red-tailed tinfoil barbTypical adult TL unknown · source 21 cm SL

Tinfoil Barb natural adult facing left, AI-generated illustration

Tinfoil BarbTypical adult TL unknown · source 35.5 cm SL

Reticulated flying fox natural adult facing left, AI-generated illustration

Reticulated flying foxTypical adult TL unknown · source 17 cm SL

Denison barb natural adult facing left, AI-generated illustration

Denison barbTypical adult TL unknown · source 11 cm SL

Guppies and other livebearers

47 speciesView all 47 species →

Guppy — domestic red delta-tail; not wild-type or all-sex representative; AI-generated side-view illustration

Guppy6 cm SL · source observation

Left-facing female Alfaro cultratus AI illustration with silver-gold body, rear dorsal and ventral keel.

Knife livebearerLength unknown

Left-facing adult male Brachyrhaphis roseni AI illustration with orange dorsal, dark scale edges and narrow two-tone gonopodium.

Cardinal brachyLength unknown

Girardinus falcatus — Natural-type adult male; no locality pedigree claim. AI-generated side-view illustration.

Goldbelly topminnowUnknown

Girardinus metallicus — Black-chin morph adult male; this colour is not shared by every male. AI-generated side-view illustration.

Metallic livebearer6 cm SL · source observation

Least killifish — natural-type adult male; AI-generated illustration

Least killifish2 cm SL · source observation

Killifish

13 speciesView all 13 species →

Aphyosemion australe, adult male AI side-view illustration facing left

Cape Lopez lyretailTypical adult TL unknown; profile maximum 6cm SL

Aphyosemion striatum, adult male AI side-view illustration facing left

Red-striped lyretailTypical adult TL unknown; profile maximum 5cm SL

Aplocheilus lineatus, adult male AI side-view illustration facing left, Golden Wonder ornamental form

Striped panchax — Golden Wonder formTypical adult TL unknown; profile maximum about 10cm TL.

Aplocheilus panchax, adult male left-facing AI illustration; Mainland-India-reference adult male illustration; not armatus or andamanicus

Blue panchaxTypical adult TL unknown; the reference male is 2.83cm SL, not a maximum.

Epiplatys annulatus, adult male AI side-view illustration facing left

Clown killifishTypical adult TL unknown; reported maximum 3.5cm SL

Epiplatys dageti, adult male AI side-view illustration facing left, pale-throated dageti representative

Daget’s panchaxTypical adult TL unknown; old combined-profile 4.5cm SL is not adopted.

Ricefish

14 speciesView all 14 species →

Japanese ricefish (medaka), adult male, left-facing AI species illustration

Japanese ricefish (medaka)3.6 cm SL · source maximum

Celebes ricefish, adult male with yellow-orange tail bands and lower-flank marks, left-facing AI illustration

Celebes ricefish4.5 cm SL · profile maximum

Indian ricefish, adult male with white fin tips and blue anal band, left-facing AI illustration

Indian ricefish3.5 cm SL · profile figure; other records differ

Doping-doping ricefish, natural adult male with pale yellow-silver flanks and diffuse dark spots, left-facing transparent AI illustration

Doping-doping ricefish2.5–4.0 cm SL · research adult reference

Evers’ ricefish, non-nuptial adult male, left-facing AI illustration

Evers’ ricefishMale 36.2 / female 38.4 mm SL · examined-series maxima

Javanese ricefish, natural adult male with yellow tail bands, left-facing AI illustration

Javanese ricefish3.5 cm SL · profile maximum

Bettas and gouramis

106 speciesView all 106 species →

Domestic royal-blue halfmoon male Betta — AI-generated side-view illustration

Siamese fighting fishAdult total length unknown A source gives about 7 cm without specifying the length endpoint; it cannot calibrate this long-finned illustration. Typical adult total length and typical captive lifespan remain unknown.

AI illustration of Anabas testudineus, complete left-facing side view

Anabas testudineusSource reports 20cm SL

Java combtail — natural-colour adult male; AI-generated left-facing side-view illustration

Java combtail20 cm SL · source observation

Ceylonese combtail — natural reddish adult, sex unspecified; AI-generated left-facing illustration.

Ceylonese combtail12 cm SL · source observation

Betta albimarginata — natural-colour adult male; AI-generated left-facing side-view illustration

Betta albimarginata3 cm SL · source observation

AI illustration of Betta apollon, complete left-facing side view

Betta apollonSource record: 5.18 cm SL

Cory catfish

104 speciesView all 104 species →

Panda Cory — AI-generated left-facing illustration

Panda Cory5 cm SL · source maximum

AI illustration of Aspidoras albater, complete left-facing side view

Aspidoras albaterLength unknown

Aspidoras kiriri left-facing AI illustration

A. eurycephalus = albater, A. mariane = poecilus, A. menezesi = raimundi, A. microgaleatus = poecilus, A. spilotus = raimundi, A. taurus = albater Length unknown

AI illustration of Aspidoras raimundi, complete left-facing side view

Raimund's Aspidoras4.5 cm SL · source maximum

AI illustration of Brochis amandajanea, complete left-facing side view

Brochis amandajanea6.5 cm SL (max)

AI illustration of Brochis ambiacus, complete left-facing side view

Spotted Cory6.5 cm SL · source maximum

Plecos and suckermouth catfish

20 speciesView all 20 species →

AI illustration of adult Acanthicus adonis in left-facing side view; not a photograph.

Polka dot lyre-tail plecoTypical adult total length unknown

AI illustration of adult Ancistrus claro in left-facing side view; not a photograph.

Gold marble bristlenoseTypical adult total length unknown

AI illustration of adult Ancistrus dolichopterus in left-facing side view; not a photograph.

Starlight bristlenose plecoTypical adult total length unknown

AI illustration of adult Baryancistrus beggini in left-facing side view; not a photograph.

Blue-fin pleco (L239)Typical adult total length unknown

AI illustration of adult Baryancistrus xanthellus in left-facing side view; not a photograph.

Gold nugget plecoTypical adult total length unknown

AI illustration of adult Farlowella vittata in left-facing side view; not a photograph.

Twig catfishSource 22.5 cm · basis unverified

Other catfish

17 speciesView all 17 species →

Spotted talking catfishTypical adult TL unknown; source reports 15 cm SL

Oil catfish (Duringlanis perugiae), AI side-view illustration, female, adult natural form, left-facing

Oil catfishTypical adult total length unknown

Dwarf anchor catfish (Erethistes jerdoni), AI side-view illustration, sex unspecified, adult natural form, left-facing

Dwarf anchor catfishTypical adult total length unknown

Sun catfish (Horabagrus brachysoma), AI side-view illustration, sex unspecified, adult natural form, left-facing

Sun catfishTypical adult total length unknown

Glass catfish (Kryptopterus vitreolus), AI side-view illustration, sex unspecified, adult natural form, left-facing

Glass catfishTypical adult total length unknown

Spotted hoplo (Megalechis thoracata), AI side-view illustration, male, adult natural form, left-facing

Spotted hoploTypical adult total length unknown

Loaches

51 speciesView all 51 species →

AI illustration of a left-facing clown loach with an orange body, three broad black bands and visible mouth barbels

Clown loachMaximum record 40 cm SL

Acantopsis dialuzona: natural-colour, left-facing lateral AI illustration, not a photograph; intended representative adult form, sex unspecified; no specimen, exact-stage or expert identification is claimed.

Piglet horseface loachTypical adult TL unknown

Ambastaia nigrolineata — left-facing adult AI illustration, not a photograph

Ambastaia nigrolineataTypical adult TL unknown

Ambastaia sidthimunki — left-facing adult AI illustration, not a photograph

Ambastaia sidthimunkiTypical adult TL unknown

Beaufortia kweichowensis — left-facing adult AI illustration, not a photograph

Beaufortia kweichowensisTypical adult TL unknown

Beaufortia zebroida: natural-colour, left-facing lateral AI illustration, not a photograph; intended representative adult form, sex unspecified; no specimen, exact-stage or expert identification is claimed.

Beaufortia zebroidaTypical adult TL unknown

Cichlids

75 speciesView all 75 species →

Freshwater angelfish, silver normal-fin form, sex unspecified, left-facing AI illustration

Freshwater angelfishUp to 15 cm body length, basis unspecified; about 20 cm high

AI illustration of Acarichthys heckelii, complete left-facing side view

Acarichthys heckelii20 cm SL (source maximum)

AI illustration of Altolamprologus calvus, complete left-facing side view

Altolamprologus calvus13.8 cm SL (source maximum)

AI illustration of Altolamprologus compressiceps, complete left-facing side view

Altolamprologus compressiceps12.5cm SL (source maximum)

Convict cichlid, natural-colour normal-fin adult male without female orange belly, left-facing AI illustration

Convict cichlidSource maximum 15 cm SL; typical TL unknown

AI illustration of Amatitlania sajica, complete left-facing side view

Amatitlania sajicaMales 12 cm, females 9 cm; measurement basis unknown

Rainbowfish and blue-eyes

53 speciesView all 53 species →

Melanotaenia boesemani — adult male AI side-view illustration

Boesemani rainbowfishTypical adult TL unknown

AI illustration of adult male Bedotia madagascariensis, left side, ordinary adult male

Madagascan rainbowfishTypical adult total length unknown

AI illustration of adult male Chilatherina alleni, left side, Wapoga illustrated form

Chilatherina alleniTypical adult total length unknown

AI illustration of adult male Chilatherina bleheri, complete left-facing side view

Chilatherina bleheriTypical adult total length unknown

AI illustration of adult male Chilatherina fasciata, left side, Lake Wanam male, resting coloration

Chilatherina fasciataTypical adult total length is unknown

AI illustration of adult male Chilatherina sentaniensis, left side, red aquarium population; wild locality unknown

Chilatherina sentaniensisTypical adult total length is unknown

Goldfish

16 varietiesView all 16 varieties →

Pearlscale goldfish — left-facing AI adult side-view illustration

Pearlscale goldfishUnknown · varies by form

Fantail domestic goldfish — left-facing AI-generated side-view illustration

Fantail goldfishUnknown · varies by form

Lionhead goldfish — left-facing AI adult side-view illustration

Lionhead goldfishUnknown · varies by form

Broadtail moor — left-facing AI adult side-view illustration

Broadtail moorUnknown · varies by form

Bubble-eye goldfish — left-facing AI adult side-view illustration

Bubble-eye goldfishUnknown · varies by form

London shubunkin — left-facing AI adult side-view illustration

London shubunkinUnknown · varies by form

Koi

24 varietiesView all 24 varieties →

Shiro Utsuri koi, complete left-facing side-view AI illustration

Shiro UtsuriTypical captive adult TL unknown

Ai Goromo koi, complete left-facing side-view AI illustration

Ai GoromoTypical captive adult TL unknown

Kumonryu koi, complete left-facing side-view AI illustration

KumonryuTypical captive adult TL unknown

Asagi koi, complete left-facing side-view AI illustration

AsagiTypical captive adult TL unknown

Koi — Kohaku-type illustration; Adult normal-fin red-and-white Kohaku-type phenotype; sex and pedigree unverified; AI side-view illustration

KohakuTypical captive adult TL unknown

Platinum Ogon koi, complete left-facing side-view AI illustration

Platinum OgonTypical captive adult TL unknown

Freshwater gobies and gudgeons

15 speciesView all 15 species →

Freshwater bumblebee goby left-facing adult AI illustration, sex unspecified

Freshwater bumblebee gobySource maximum 2 cm SL · illustrated total length unknown

Desert goby adult male in left-facing side view; AI-generated illustration

Desert gobyMaximum around 6 cm SL · typical adult range unknown

Empire gudgeon adult male in left-facing side view; AI-generated illustration

Empire gudgeonSource maximum about 12 cm SL · typical adult range unknown

Chinese sleeper left-facing adult AI illustration, sex unspecified

Chinese sleeperSource maximum about 8 cm · length convention unspecified

Southern purplespotted gudgeon adult male in left-facing side view; AI-generated illustration

Southern purplespotted gudgeonSource maximum about 12 cm SL · typical adult range unknown

Lake Matano goby adult male in left-facing side view; AI-generated illustration

Lake Matano gobyImporter maximum about 4 cm · SL/TL unspecified

Other pond fish

6 speciesView all 6 species →

Sterlet; Adult natural olive-brown form; sex unspecified; AI side-view illustration

SterletTypical captive adult TL unknown

Grass carp — Adult natural olive-silver form; sex unspecified; AI-generated side-view illustration

Grass carpTypical adult TL unknown

Three-spined stickleback, nonbreeding adult with a fully plated appearance, left-facing AI illustration; sex and population unverified

Three-spined sticklebackTypical captive adult TL unknown

Golden orfe / ide — Adult golden colour form; sex unspecified; AI-generated side-view illustration

Golden orfe / ideTypical adult TL unknown

Rudd — Adult natural bronze-gold form; sex unspecified; AI-generated side-view illustration

RuddTypical adult TL unknown

Tench — Adult female, natural olive-green form; AI-generated side-view illustration

TenchTypical adult TL unknown

Freshwater puffers

16 speciesView all 16 species →

Pea puffer (Carinotetraodon travancoricus), left-facing adult AI illustration

Pea pufferSmall; source reports approximately 2–3 cm, measurement basis unspecified

Bornean redeye puffer (Carinotetraodon borneensis), left-facing adult AI illustration

Bornean redeye pufferImporter males around 6 cm and females around 4 cm; basis unspecified

Imitator dwarf puffer (Carinotetraodon imitator), left-facing adult AI illustration

Imitator dwarf pufferType material approximately 19–26.5 mm SL

Red-tailed redeye puffer (Carinotetraodon irrubesco), left-facing adult AI illustration

Red-tailed redeye pufferMale approximately 5 cm in importer account; basis unspecified

Redeye puffer (Carinotetraodon lorteti), left-facing adult AI illustration

Redeye pufferProfile 60 mm SL; not sprite TL

Striped redeye puffer (Carinotetraodon salivator), left-facing adult AI illustration

Striped redeye pufferProfile 50 mm SL; not sprite TL

Badis and leaffish

10 speciesView all 10 species →

Blue badis — Natural-coloured adult male; AI-generated illustration

Blue badis6 cm SL · source record

Eyespot badis6 cm SL · source record

Burmese badis5 cm SL · source record

Scarlet badis — Natural-coloured adult male; AI-generated illustration

Scarlet badis2 cm SL · source record

Flame red badis — Natural red-form adult male; AI-generated illustration

Flame red badis2 cm SL · source record

Kajal dario2 cm SL · source record

Snakeheads

10 speciesView all 10 species →

Blue rainbow snakehead — Natural adult, sex unspecified; no pelvic fins, blue fins, no orange-red tail patches; AI-generated illustration.

Blue rainbow snakeheadTypical adult range unknown; reports around 10 cm, exceptionally 15 cm

Small snakehead — Natural brown adult, sex unspecified; white spots, tail-base eyespot, no pelvic fins; AI-generated illustration.

Small snakeheadTypical adult range unknown; reports include 23.5 cm TL and 40 cm

Orange-spotted snakehead — Natural adult, sex unspecified; golden-orange flank patches and pelvic fins present; AI-generated illustration.

Orange-spotted snakeheadAquarium reports up to 50 cm; typical adult range unknown

Rainbow snakehead — Natural adult, sex unspecified; orange-red tail patches and no pelvic fins; AI-generated illustration.

Rainbow snakehead15–20 cm supplier description; SL/TL unspecified

Emperor snakehead — Natural golden-brown adult, sex and locality unspecified; upper tail-base ocellus and irregular flank patches; AI-generated illustration.

Emperor snakeheadMaximum reports of 65 cm; typical adult range unknown

Giant snakehead — Natural adult, sex unspecified; dark flank band and pale dorsal mottling, without the orange-red juvenile stripe; AI-generated illustration.

Giant snakeheadMaximum reports exceed 130 cm; typical adult range unknown

Arowanas and relatives

7 speciesView all 7 species →

Asian arowana adult wild-type left-facing transparent AI illustration

Asian arowanaAquarium report: up to 3 feet, length basis unspecified

African bonytongue adult representative natural form, left-facing transparent AI illustration without chin barbels

African bonytongueImporter maximum approaching1m; SL/TL unspecified and typical captive adult range unknown

Silver arowana adult wild-type left-facing transparent AI illustration

Silver arowanaReported maximum 90 cm; length basis and typical adult range unverified

Black arowana adult wild-type left-facing transparent AI illustration

Black arowanaRetailer reports 24 inches or more; length basis unknown

African butterflyfish adult wild-type left-facing transparent AI illustration

African butterflyfishImporter: about 10 cm, basis unspecified; database aquarium maximum: 15 cm TL

Northern saratoga adult wild-type left-facing transparent AI illustration

Northern saratogaSpecies account: commonly to55cm TL, maximum about100cm TL; a typical captive adult range is unknown.

Freshwater stingrays

15 speciesView all 15 species →

Potamotrygon leopoldi — dorsal top-down AI illustration, head up, complete disc and tail down; not a photograph

White-blotched river stingray30–40 cm disc in one source · can grow larger

Heliotrygon gomesi — dorsal top-down AI illustration, head up, complete disc and tail down; not a photograph

Gomes’s round rayPictured specimen: 22.4 cm DW · typical adult unknown

Heliotrygon rosai — dorsal top-down AI illustration, head up, complete disc and tail down; not a photograph

Rosa’s round rayMale holotype: 57.5 cm DW · typical size unknown

Paratrygon aiereba — dorsal top-down AI illustration, head up, complete disc and tail down; not a photograph

Discus rayMale neotype:60.3cm DW · typical adult unknown

Plesiotrygon iwamae — dorsal top-down AI illustration, head up, complete disc and tail down; not a photograph

Long-tailed river stingrayRedescription: above65cm DW or DL · typical unknown

Plesiotrygon nana — dorsal top-down AI illustration, head up, complete disc and tail down; not a photograph

Black-tailed antenna rayReported female:52.3cm DW · typical adult unknown

Other characins

12 speciesView all 12 species →

Marbled headstander — left-facing natural adult, AI-generated illustration

Marbled headstanderAbout 15–20 cm in one source; SL/TL unstated

Striped headstander — left-facing natural adult, AI-generated illustration

Striped headstanderAbout 15–18 cm; length basis unstated

Gold-striped headstander — left-facing natural adult, AI-generated illustration

Gold-striped headstanderReported maximum 12.5 cm SL; typical adult TL unknown

Gar characin — left-facing adult, AI-generated illustration

Gar characinSource maximum 25 cm SL

Banded leporinus — left-facing natural adult, AI-generated illustration

Banded leporinusConflicting adult reports: 15–25 cm to about 40 cm

Metynnis argenteus, representative adult in left-facing lateral AI illustration; not a photograph.

Metynnis argenteusSource reports 15.0cm SL

Knifefish, bichirs and more

19 speciesView all 19 species →

Black ghost knifefish, left-facing adult natural-colour AI side-view illustration

Black ghost knifefish50 cm TL · source record; typical adult TL unknown

Alligator gar, adult natural-colour left-facing AI illustration

Alligator gar305 cm SL; 300 cm unspecified · source records; typical adult TL unknown

Royal featherback, adult natural-colour left-facing AI illustration

Royal featherback120 cm SL · source records; typical adult TL unknown

Clown featherback, adult natural-colour left-facing AI illustration

Clown featherback100 cm SL · source records; typical adult TL unknown

Indonesian tiger perch, adult natural-colour left-facing AI illustration

Indonesian tiger perch50 cm SL · source records; typical adult TL unknown

Siamese tiger perch, adult natural-colour left-facing AI illustration

Siamese tiger perch40 cm SL · source records; typical adult TL unknown