Freshwater aquarium fish: G
All freshwater fish whose common name starts with G, in alphabetical order. Each card links to its care guide.
135 species and 27 varieties
Galaxy otocinclus
Parotocinclus haroldoi
Freshwater1.6 in (4 cm) · 14 gal (54 L)75–82°F (24–28°C)
Galaxy panaqolus
Panaqolus albomaculatus
Freshwater5.5 in (14 cm) · 53 gal (200 L)77–84°F (25–29°C)
Gallagher's catfish
Rhinodoras gallagheri
Freshwater5.9 in (15 cm) · 70 gal (265 L)73–82°F (23–28°C)
Gangetic climbing perch
Anabas cobojius
Freshwater9.8 in (25 cm) · 66 gal (250 L)72–86°F (22–30°C)
Gangetic latia
Tariqilabeo latius
Freshwater5.9 in (15 cm) · 42 gal (160 L)64–77°F (18–25°C)
Gangetic leaffish
Nandus nandus
Freshwater7.9 in (20 cm) · 34 gal (130 L)72–82°F (22–28°C)
Gangetic loach
Botia rostrata
Freshwater4.7 in (12 cm) · 42 gal (160 L)66–81°F (19–27°C)
Gangetic scissortail rasbora
Rasbora rasbora
Freshwater5.1 in (13 cm) · 42 gal (160 L)72–81°F (22–27°C)
Garnet tetra
Hemigrammus pulcher
Freshwater1.8 in (4.5 cm) · 20 gal (75 L)73–82°F (23–28°C)
Gary Lange's rainbowfish
Melanotaenia garylangei
Freshwater3.5 in (9 cm) · 29 gal (110 L)75–84°F (24–29°C)
Gecko goby
Belobranchus belobranchus
Freshwater7.5 in (19 cm) · 53 gal (200 L)73–81°F (23–27°C)
Geert's utaka
Copadichromis geertsi
Freshwater6.3 in (16 cm) · 79 gal (300 L)75–81°F (24–27°C)
Geoffroy's cory
Corydoras geoffroy
Freshwater3 in (7.5 cm) · 26 gal (100 L)73–81°F (23–27°C)
Gephyrus cichlid
Mesoheros gephyrus
Freshwater5.9 in (15 cm) · 79 gal (300 L)75–84°F (24–29°C)
Gertrude's peacock
Aulonocara gertrudae
Freshwater5.1 in (13 cm) · 74 gal (280 L)75–81°F (24–27°C)
Gery's killi
Scriptaphyosemion geryi
Freshwater2.6 in (6.5 cm) · 14 gal (54 L)72–79°F (22–26°C)
Ghost pleco
Ancistomus snethlageae
Freshwater8.7 in (22 cm) · 66 gal (250 L)77–84°F (25–29°C)
Giant brochis
Brochis britskii
Freshwater3.5 in (9 cm) · 40 gal (150 L)70–79°F (21–26°C)
Giant bumblebee catfish
Pseudopimelodus bufonius
Freshwater9.8 in (25 cm) · 106 gal (400 L)73–82°F (23–28°C)
Giant danio
Devario aequipinnatus
Freshwater5.9 in (15 cm) · 50 gal (190 L)72–81°F (22–27°C)
Giant gourami
Osphronemus goramy
Freshwater27.6 in (70 cm) · 125 gal (475 L)68–86°F (20–30°C)
Giant kribensis
Pelvicachromis sacrimontis
Freshwater3.9 in (10 cm) · 29 gal (110 L)75–81°F (24–27°C)
Giant kuhli loach
Pangio myersi
Freshwater3.9 in (10 cm) · 20 gal (75 L)72–82°F (22–28°C)
Giant otocinclus
Hypoptopoma psilogaster
Freshwater3.1 in (8 cm) · 29 gal (110 L)75–82°F (24–28°C)
Giant pikehead
Luciocephalus pulcher
Freshwater7.9 in (20 cm) · 36 gal (135 L)72–79°F (22–26°C)
Giant raphael catfish
Megalodoras uranoscopus
Freshwater23.6 in (60 cm) · 264 gal (1,000 L)73–82°F (23–28°C)
Giant red tail gourami
Osphronemus laticlavius
Freshwater19.7 in (50 cm) · 264 gal (1,000 L)68–86°F (20–30°C)
Giant river hatchetfish
Triportheus rotundatus
Freshwater9.8 in (25 cm) · 79 gal (300 L)73–82°F (23–28°C)
Giant sailfin molly
Poecilia velifera
FreshwaterBrackish5.9 in (15 cm) · 30 gal (113 L)75–82°F (24–28°C)
Giant snakehead
Channa micropeltes
Freshwater39.4 in (100 cm) · 528 gal (2,000 L)75–82°F (24–28°C)
Giant stone loach
Triplophysa siluroides
Freshwater21.7 in (55 cm) · 127 gal (480 L)50–68°F (10–20°C)
Giant upside-down catfish
Synodontis batensoda
Freshwater11.8 in (30 cm) · 79 gal (300 L)72–81°F (22–27°C)
Giant whiptail catfish
Sturisomatichthys aureus
Freshwater7.9 in (20 cm) · 53 gal (200 L)73–81°F (23–27°C)
Gibbiceps buffalo head
Steatocranus gibbiceps
Freshwater3.9 in (10 cm) · 42 gal (160 L)73–81°F (23–27°C)
Gill's molly
Poecilia gillii
FreshwaterBrackish3.9 in (10 cm) · 26 gal (100 L)72–86°F (22–30°C)
Gilt darter
Percina evides
Freshwater3.5 in (9 cm) · 29 gal (110 L)59–70°F (15–21°C)Gladiator betta
Betta gladiator
Freshwater2.2 in (5.6 cm) · 26 gal (100 L)72–81°F (22–27°C)
Glass bloodfin tetra
Prionobrama filigera
Freshwater2.4 in (6 cm) · 20 gal (75 L)73–81°F (23–27°C)
Glass catfish
Kryptopterus vitreolus
Freshwater2.8 in (7 cm) · 30 gal (115 L)70–79°F (21–26°C)
Glass goby
Gobiopterus chuno
Freshwater1 in (2.5 cm) · 11 gal (40 L)75–82°F (24–28°C)
Glass knifefish
Eigenmannia virescens
Freshwater17.7 in (45 cm) · 85 gal (320 L)73–82°F (23–28°C)
Glass tetra
Moenkhausia oligolepis
Freshwater2 in (5 cm) · 18 gal (70 L)75–82°F (24–28°C)
Glowing ember barb
Enteromius candens
Freshwater1.6 in (4 cm) · 14 gal (54 L)72–81°F (22–27°C)
Glowlight carplet
Horadandia atukorali
Freshwater1.2 in (3 cm) · 11 gal (40 L)75–82°F (24–28°C)
Glowlight danio
Danio choprae
Freshwater1.2 in (3 cm) · 20 gal (75 L)72–79°F (22–26°C)
Glowlight rasbora
Trigonostigma hengeli
Freshwater1.6 in (4 cm) · 12 gal (45 L)73–82°F (23–28°C)
Glowlight tetra
Hemigrammus erythrozonus
Freshwater1.6 in (4 cm) · 18 gal (70 L)75–82°F (24–28°C)
Goblin sundadanio
Sundadanio goblinus
Freshwater0.9 in (2.3 cm) · 11 gal (40 L)73–81°F (23–27°C)
Goby cichlid
Gobiocichla wonderi
Freshwater2.6 in (6.5 cm) · 30 gal (112 L)75–82°F (24–28°C)
Gold barb
Barbodes semifasciolatus
Freshwater2.8 in (7 cm) · 20 gal (75 L)64–75°F (18–24°C)
Gold headstander
Anostomus ternetzi
Freshwater6.3 in (16 cm) · 53 gal (200 L)73–82°F (23–28°C)
Gold hovering catfish
Chandramara chandramara
Freshwater2 in (5 cm) · 21 gal (80 L)68–79°F (20–26°C)
Gold laser cory
Osteogaster melanotaenia
Freshwater2.4 in (6 cm) · 17 gal (65 L)68–73°F (20–23°C)
Gold marble bristlenose pleco
Ancistrus claro
Freshwater3.1 in (8 cm) · 20 gal (75 L)77–84°F (25–29°C)
Gold neon dwarf goby
Stiphodon percnopterygionus
Freshwater1.6 in (4 cm) · 14 gal (54 L)72–79°F (22–26°C)
Gold nugget pleco
Baryancistrus xanthellus
Freshwater9.8 in (25 cm) · 55 gal (210 L)81–90°F (27–32°C)
Gold ocellatus shell dweller
Lamprologus ocellatus
Freshwater2.4 in (6 cm) · 11 gal (40 L)75–81°F (24–27°C)
Gold pygmy horseface loach
Kottelatlimia pristes
Freshwater1.6 in (4 cm) · 14 gal (54 L)72–81°F (22–27°C)
Gold ring danio
Danio tinwini
Freshwater1.2 in (3 cm) · 11 gal (40 L)64–79°F (18–26°C)
Gold saum
Andinoacara rivulatus
Freshwater11.8 in (30 cm) · 75 gal (285 L)68–75°F (20–24°C)
Gold spot otocinclus
Parotocinclus spilosoma
Freshwater2.4 in (6 cm) · 14 gal (54 L)75–82°F (24–28°C)
Gold spot sailfin pleco
Pterygoplichthys joselimaianus
Freshwater15.7 in (40 cm) · 119 gal (450 L)77–84°F (25–29°C)
Gold-spotted doradid
Wertheimeria maculata
Freshwater11.8 in (30 cm) · 106 gal (400 L)68–79°F (20–26°C)
Gold-spotted halfbeak
Hemirhamphodon chrysopunctatus
Freshwater2.6 in (6.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Goldbelly naevochromis
Naevochromis chrysogaster
Freshwater7.1 in (18 cm) · 119 gal (450 L)75–81°F (24–27°C)
Goldbreast splitfin
Ilyodon furcidens
Freshwater3.9 in (10 cm) · 24 gal (90 L)64–79°F (18–26°C)
Goldbreast zebra
Maylandia fainzilberi
Freshwater5.1 in (13 cm) · 66 gal (250 L)75–82°F (24–28°C)
Golden curimata
Cyphocharax multilineatus
Freshwater4.3 in (11 cm) · 40 gal (150 L)73–82°F (23–28°C)
Golden dwarf barb
Pethia gelius
Freshwater1.6 in (4 cm) · 20 gal (75 L)64–75°F (18–24°C)
Golden dwarf cichlid
Nannacara anomala
Freshwater3.1 in (8 cm) · 16 gal (60 L)72–82°F (22–28°C)
Golden dwarf convict
Amatitlania nanolutea
Freshwater3.1 in (8 cm) · 29 gal (110 L)75–84°F (24–29°C)
Golden dwarf sucker
Otocinclus macrospilus
Freshwater1.4 in (3.5 cm) · 11 gal (40 L)70–79°F (21–26°C)
Golden fleece zebra
Maylandia chrysomallos
Freshwater4.3 in (11 cm) · 53 gal (200 L)75–82°F (24–28°C)
Golden hypostomus
Hypostomus luteus
Freshwater13.8 in (35 cm) · 106 gal (400 L)64–79°F (18–26°C)
Golden julie
Julidochromis ornatus
Freshwater3.1 in (8 cm) · 18 gal (70 L)73–81°F (23–27°C)
Golden lyretail killifish
Aphyosemion australe
Freshwater2.4 in (6 cm) · 10 gal (38 L)70–75°F (21–24°C)
Golden mugilogobius
Mugilogobius rexi
Freshwater1.6 in (4 cm) · 14 gal (54 L)75–82°F (24–28°C)
Golden pencilfish
Nannostomus beckfordi
Freshwater2.4 in (6 cm) · 18 gal (70 L)70–81°F (21–27°C)
Golden pheasant
Callopanchax occidentalis
Freshwater3.1 in (8 cm) · 14 gal (54 L)68–75°F (20–24°C)
Golden puffer
Auriglobus modestus
Freshwater4.3 in (11 cm) · 22 gal (85 L)73–82°F (23–28°C)
Golden skiffia
Skiffia francesae
Freshwater2.2 in (5.5 cm) · 16 gal (60 L)68–79°F (20–26°C)
Golden soldier catfish
Mystus tengara
Freshwater7.1 in (18 cm) · 42 gal (160 L)73–81°F (23–27°C)
Golden spot goby
Stiphodon rutilaureus
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Golden striped goby
Stiphodon aureofuscus
Freshwater1.4 in (3.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Golden tetra
Hemigrammus rodwayi
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)75–82°F (24–28°C)
Golden topminnow
Fundulus chrysotus
Freshwater3 in (7.5 cm) · 22 gal (85 L)59–75°F (15–24°C)
Golden vampire pleco
Leporacanthicus heterodon
Freshwater6.3 in (16 cm) · 79 gal (300 L)79–86°F (26–30°C)
Goldfish
Carassius auratus
Freshwater12 varieties
Goldhead nannacara
Nannacara aureocephalus
Freshwater3.1 in (8 cm) · 14 gal (54 L)75–82°F (24–28°C)
Goldie River rainbowfish
Melanotaenia goldiei
Freshwater5.1 in (13 cm) · 53 gal (200 L)75–86°F (24–30°C)
Goliath tigerfish
Hydrocynus goliath
Freshwater52.4 in (133 cm) · 3,963 gal (15,000 L)73–81°F (23–27°C)
Gomez's cory
Brochis gomezi
Freshwater2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)
Gongota loach
Canthophrys gongota
Freshwater5.1 in (13 cm) · 42 gal (160 L)70–81°F (21–27°C)
Goonch catfish
Bagarius bagarius
Freshwater7.9 in (20 cm) · 53 gal (200 L)72–79°F (22–26°C)
Gossei cory
Hoplisoma gossei
Freshwater2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)
Graceful lamprologus
Neolamprologus gracilis
Freshwater3.5 in (9 cm) · 42 gal (160 L)75–81°F (24–27°C)
Graceful rasbora
Trigonopoma gracile
Freshwater2 in (5 cm) · 16 gal (60 L)72–79°F (22–26°C)
Grammodes cichlid
Chiapaheros grammodes
Freshwater9.4 in (24 cm) · 119 gal (450 L)75–84°F (24–29°C)
Grant's cory
Hoplisoma granti
Freshwater2.6 in (6.5 cm) · 20 gal (75 L)73–81°F (23–27°C)
Grant's peacock
Aulonocara stuartgranti
Freshwater5.1 in (13 cm) · 74 gal (280 L)75–82°F (24–28°C)
Granulated synodontis
Synodontis granulosus
Freshwater10.6 in (27 cm) · 79 gal (300 L)73–81°F (23–27°C)
Greater scissortail
Rasbora caudimaculata
Freshwater5.1 in (13 cm) · 53 gal (200 L)68–79°F (20–26°C)
Green belly goby
Lentipes ikeae
Freshwater1.6 in (4 cm) · 14 gal (54 L)73–81°F (23–27°C)
Green Borneo sucker
Gastromyzon lepidogaster
Freshwater4.7 in (12 cm) · 29 gal (110 L)68–77°F (20–25°C)
Green chromide
Etroplus suratensis
FreshwaterBrackish11.8 in (30 cm) · 145 gal (550 L)68–86°F (20–30°C)
Green dwarf distichodus
Distichodus teugelsi
Freshwater2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)
Green farlowella
Acestridium dichromum
Freshwater2.8 in (7 cm) · 20 gal (75 L)75–82°F (24–28°C)
Green fire tetra
Aphyocharax rathbuni
Freshwater2 in (5 cm) · 20 gal (75 L)72–79°F (22–26°C)
Green guapote
Mayaheros beani
Freshwater11.8 in (30 cm) · 119 gal (450 L)75–84°F (24–29°C)
Green lizard tetra
Iguanodectes spilurus
Freshwater3.5 in (9 cm) · 32 gal (120 L)73–82°F (23–28°C)
Green neon rasbora
Microdevario kubotai
Freshwater0.8 in (2 cm) · 12 gal (45 L)72–79°F (22–26°C)
Green neon tetra
Paracheirodon simulans
Freshwater1 in (2.5 cm) · 15 gal (55 L)72–86°F (22–30°C)
Green panchax
Aplocheilus blockii
Freshwater2 in (5 cm) · 11 gal (40 L)72–82°F (22–28°C)
Green phantom pleco (L200)
Hemiancistrus subviridis
Freshwater7.1 in (18 cm) · 53 gal (200 L)79–86°F (26–30°C)
Green slender-tail hap
Buccochromis lepturus
Freshwater13.8 in (35 cm) · 211 gal (800 L)75–82°F (24–28°C)
Green swordtail
Xiphophorus hellerii
Freshwater5.9 in (15 cm) · 24 gal (90 L)68–82°F (20–28°C)6 varietiesGreen throat mouthbrooder
Betta chloropharynx
Freshwater2.3 in (5.9 cm) · 21 gal (80 L)75–82°F (24–28°C)
Green tiger loach
Syncrossus hymenophysa
Freshwater8.3 in (21 cm) · 40 gal (150 L)77–86°F (25–30°C)
Green turushuki catfish
Hemidoras morrisi
Freshwater6.3 in (16 cm) · 53 gal (200 L)73–82°F (23–28°C)
Green-eye tetra
Moenkhausia chlorophthalma
Freshwater3.1 in (8 cm) · 24 gal (90 L)75–82°F (24–28°C)
Greenbottle puffer
Auriglobus nefastus
Freshwater5.1 in (13 cm) · 66 gal (250 L)75–82°F (24–28°C)
Greshoff's spiny eel
Mastacembelus greshoffi
Freshwater15 in (38 cm) · 79 gal (300 L)73–82°F (23–28°C)
Guapore cory
Gastrodermus guapore
Freshwater2 in (5 cm) · 16 gal (60 L)72–82°F (22–28°C)
Guenther's mouthbrooder
Chromidotilapia guentheri
Freshwater5.9 in (15 cm) · 30 gal (115 L)75–81°F (24–27°C)
Guenther's zipper loach
Nemacheilus guentheri
Freshwater2.6 in (6.7 cm) · 20 gal (75 L)68–79°F (20–26°C)
Guianense otocinclus
Hypoptopoma guianense
Freshwater3 in (7.5 cm) · 29 gal (110 L)75–82°F (24–28°C)
Guinean panchax
Epiplatys guineensis
Freshwater2.8 in (7 cm) · 14 gal (54 L)68–77°F (20–25°C)
Gulf saratoga
Scleropages jardinii
Freshwater35.4 in (90 cm) · 317 gal (1,200 L)75–86°F (24–30°C)
Gulper catfish
Asterophysus batrachus
Freshwater9.8 in (25 cm) · 95 gal (360 L)72–82°F (22–28°C)
Gunawan's licorice gourami
Parosphromenus gunawani
Freshwater1.2 in (3 cm) · 5 gal (20 L)72–81°F (22–27°C)
Guntea loach
Lepidocephalichthys guntea
Freshwater4.7 in (12 cm) · 24 gal (90 L)64–82°F (18–28°C)
Gunther's nothobranch
Nothobranchius guentheri
Freshwater2.4 in (6 cm) · 11 gal (40 L)72–77°F (22–25°C)
Günther's peacock
Aulonocara guentheri
Freshwater5.9 in (15 cm) · 74 gal (280 L)75–81°F (24–27°C)
Guppy
Poecilia reticulata
FreshwaterBrackish2.4 in (6 cm) · 13 gal (50 L)64–82°F (18–28°C)9 varieties
Guyana festivum
Mesonauta guyanae
Freshwater4.3 in (11 cm) · 66 gal (250 L)75–82°F (24–28°C)
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