Freshwater aquarium fish: E
All freshwater fish whose common name starts with E, in alphabetical order. Each card links to its care guide.
70 species and 4 varieties
Eartheater cichlid
Geophagus altifrons
Freshwater9.8 in (25 cm) · 115 gal (435 L)79–90°F (26–32°C)
Eastern bottlenose mormyrid
Mormyrus longirostris
Freshwater29.5 in (75 cm) · 185 gal (700 L)75–82°F (24–28°C)
Eastern happy
Astatotilapia calliptera
Freshwater5.9 in (15 cm) · 66 gal (250 L)73–82°F (23–28°C)
Eastern mosquitofish
Gambusia holbrooki
Freshwater3.1 in (8 cm) · 11 gal (40 L)59–84°F (15–29°C)
Eastern rainbowfish
Melanotaenia splendida splendida
Freshwater5.9 in (15 cm) · 50 gal (190 L)75–84°F (24–29°C)
Eastern siam betta
Betta siamorientalis
Freshwater1.8 in (4.5 cm) · 11 gal (40 L)72–82°F (22–28°C)
Edith's betta
Betta edithae
Freshwater2.4 in (6 cm) · 20 gal (75 L)72–81°F (22–27°C)
Eel kuhli loach
Pangio anguillaris
Freshwater4.7 in (12 cm) · 20 gal (75 L)72–82°F (22–28°C)
Eel mormyrid
Isichthys henryi
Freshwater11.4 in (29 cm) · 79 gal (300 L)73–82°F (23–28°C)
Eggers' notho
Nothobranchius eggersi
Freshwater2 in (5 cm) · 11 gal (40 L)68–79°F (20–26°C)
Egyptian mouthbrooder
Pseudocrenilabrus multicolor
Freshwater3.1 in (8 cm) · 20 gal (75 L)72–79°F (22–26°C)
Ehrhardt's cory
Hoplisoma ehrhardti
Freshwater2 in (5 cm) · 16 gal (60 L)66–77°F (19–25°C)
Eigenmann's whiptail
Rineloricaria eigenmanni
Freshwater4.7 in (12 cm) · 29 gal (110 L)75–82°F (24–28°C)
Eight-spotted leporinus
Leporinus octomaculatus
Freshwater5.1 in (13 cm) · 53 gal (200 L)73–82°F (23–28°C)
Eilyos tetra
Hyphessobrycon eilyos
Freshwater1.2 in (3 cm) · 12 gal (45 L)72–81°F (22–27°C)
Electric blue hap
Sciaenochromis fryeri
Freshwater7.1 in (18 cm) · 66 gal (250 L)75–82°F (24–28°C)
Electric catfish
Malapterurus electricus
Freshwater39.4 in (100 cm) · 198 gal (750 L)73–82°F (23–28°C)
Electric yellow cichlid
Labidochromis caeruleus
Freshwater4.7 in (12 cm) · 42 gal (160 L)75–82°F (24–28°C)
Elegant algae goby
Stiphodon elegans
Freshwater2 in (5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Elegant cory
Gastrodermus elegans
Freshwater2.1 in (5.4 cm) · 16 gal (60 L)68–79°F (20–26°C)
Elegant darter characin
Ammocryptocharax elegans
Freshwater1.6 in (4 cm) · 14 gal (54 L)73–81°F (23–27°C)
Elegant lentipes goby
Lentipes venustus
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Elegant pencilfish
Nannostomus limatus
Freshwater1.6 in (4 cm) · 14 gal (54 L)75–82°F (24–28°C)
Elephant baby whale
Pollimyrus isidori
Freshwater3.9 in (10 cm) · 29 gal (110 L)75–82°F (24–28°C)
Elephant knifefish
Rhamphichthys rostratus
Freshwater39.4 in (100 cm) · 238 gal (900 L)75–82°F (24–28°C)
Elephant trunk mormyrid
Campylomormyrus elephas
Freshwater15.7 in (40 cm) · 119 gal (450 L)75–82°F (24–28°C)
Elephant-nose knifefish
Sternarchorhynchus oxyrhynchus
Freshwater18.5 in (47 cm) · 106 gal (400 L)73–82°F (23–28°C)
Elizabeth's dwarf cichlid
Apistogramma elizabethae
Freshwater2 in (5 cm) · 20 gal (75 L)75–84°F (24–29°C)
Ellioti cichlid
Thorichthys maculipinnis
Freshwater5.9 in (15 cm) · 53 gal (200 L)75–82°F (24–28°C)
Ellis's cory
Corydoras ellisae
Freshwater2 in (5 cm) · 20 gal (75 L)72–79°F (22–26°C)
Elongate lamprologus
Lepidiolamprologus elongatus
Freshwater12.6 in (32 cm) · 119 gal (450 L)75–81°F (24–27°C)
Elongate mbuna
Chindongo elongatus
Freshwater5.1 in (13 cm) · 53 gal (200 L)75–81°F (24–27°C)
Elongate moth catfish
Hara horai
Freshwater3.1 in (8 cm) · 14 gal (54 L)68–79°F (20–26°C)
Embaloh Borneo sucker
Gastromyzon embalohensis
Freshwater2 in (5 cm) · 20 gal (75 L)72–79°F (22–26°C)
Ember tetra
Hyphessobrycon amandae
Freshwater0.8 in (2 cm) · 9 gal (35 L)72–82°F (22–28°C)
Emerald betta
Betta smaragdina
Freshwater2.4 in (6 cm) · 11 gal (40 L)72–82°F (22–28°C)
Emerald catfish
Brochis splendens
Freshwater3.1 in (8 cm) · 40 gal (150 L)70–82°F (21–28°C)
Emerald dwarf rasbora
Danio erythromicron
Freshwater0.8 in (2 cm) · 11 gal (40 L)68–75°F (20–24°C)
Emperor cichlid
Boulengerochromis microlepis
Freshwater31.5 in (80 cm) · 528 gal (2,000 L)75–81°F (24–27°C)
Emperor loach
Botia udomritthiruji
Freshwater5.5 in (14 cm) · 42 gal (160 L)73–82°F (23–28°C)
Emperor round-face barb
Cyprinion semiplotum
Freshwater23.6 in (60 cm) · 396 gal (1,500 L)61–77°F (16–25°C)
Emperor tetra
Nematobrycon palmeri
Freshwater2 in (5 cm) · 20 gal (75 L)73–81°F (23–27°C)
Empire gudgeon
Hypseleotris compressa
Freshwater4.7 in (12 cm) · 26 gal (100 L)68–95°F (20–35°C)
Endler's livebearer
Poecilia wingei
FreshwaterBrackish1.6 in (4 cm) · 5 gal (20 L)72–86°F (22–30°C)4 varieties
Enisae betta
Betta enisae
Freshwater2.4 in (6 cm) · 16 gal (60 L)70–77°F (21–25°C)
Epae acara
Aequidens epae
Freshwater5.5 in (14 cm) · 66 gal (250 L)75–82°F (24–28°C)
Epicharis tetra
Hyphessobrycon epicharis
Freshwater1.6 in (4 cm) · 16 gal (60 L)73–82°F (23–28°C)
Ericotaenia hap
Mylochromis ericotaenia
Freshwater8.1 in (20.5 cm) · 119 gal (450 L)75–81°F (24–27°C)
Eschwartzae tetra
Hyphessobrycon eschwartzae
Freshwater1.5 in (3.8 cm) · 15 gal (55 L)72–81°F (22–27°C)
Espei rasbora
Trigonostigma espei
Freshwater1.5 in (3.8 cm) · 11 gal (40 L)73–82°F (23–28°C)
Ethelwynn's goby cichlid
Gobiocichla ethelwynnae
Freshwater2.8 in (7 cm) · 30 gal (112 L)73–81°F (23–27°C)
Eureka red peacock
Aulonocara jacobfreibergi
Freshwater6.7 in (17 cm) · 63 gal (240 L)77–84°F (25–29°C)
European bitterling
Rhodeus amarus
Freshwater3.9 in (10 cm) · 34 gal (130 L)55–72°F (13–22°C)
European minnow
Phoxinus phoxinus
Freshwater5.1 in (13 cm) · 45 gal (170 L)54–68°F (12–20°C)
European perch
Perca fluviatilis
Freshwater19.7 in (50 cm) · 119 gal (450 L)50–72°F (10–22°C)
Evelyn's cory
Hoplisoma evelynae
Freshwater1.6 in (4 cm) · 15 gal (55 L)72–79°F (22–26°C)
Even-Spotted squeaker
Synodontis petricola
Freshwater4.7 in (12 cm) · 45 gal (170 L)75–82°F (24–28°C)
Everett's barb
Barbodes everetti
Freshwater4.7 in (12 cm) · 40 gal (150 L)64–82°F (18–28°C)
Everglades pygmy sunfish
Elassoma evergladei
Freshwater1.3 in (3.4 cm) · 8 gal (30 L)54–82°F (12–28°C)
Exclamation barb
Dawkinsia exclamatio
Freshwater3.5 in (9 cm) · 42 gal (160 L)70–79°F (21–26°C)
Exclamation-point rasbora
Boraras urophthalmoides
Freshwater0.6 in (1.6 cm) · 11 gal (40 L)73–81°F (23–27°C)
Eyespot betta
Betta ocellata
Freshwater3.5 in (9 cm) · 24 gal (90 L)70–77°F (21–25°C)
Eyespot bushfish
Ctenopoma ocellatum
Freshwater5.9 in (15 cm) · 42 gal (160 L)73–82°F (23–28°C)
Eyespot dwarf pike
Wallaciia notophthalmus
Freshwater3.5 in (9 cm) · 42 gal (160 L)75–82°F (24–28°C)
Eyespot gourami
Parasphaerichthys ocellatus
Freshwater1.4 in (3.5 cm) · 12 gal (45 L)64–77°F (18–25°C)
Eyespot hampala barb
Hampala dispar
Freshwater13.8 in (35 cm) · 159 gal (600 L)72–82°F (22–28°C)
Eyespot rasbora
Brevibora dorsiocellata
Freshwater1.4 in (3.5 cm) · 9 gal (35 L)68–77°F (20–25°C)
Eyespot severum
Heros liberifer
Freshwater7.9 in (20 cm) · 106 gal (400 L)75–82°F (24–28°C)
Eyespot spiny eel
Mastacembelus notophthalmus
Freshwater17.7 in (45 cm) · 106 gal (400 L)73–82°F (23–28°C)
Eyespotted Borneo sucker
Gastromyzon ocellatus
Freshwater2.1 in (5.4 cm) · 20 gal (75 L)68–77°F (20–25°C)
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