Advanced freshwater fish: E
All advanced freshwater fish whose common name starts with E, in alphabetical order. Each card links to its care guide.
14 species

Eastern bottlenose mormyrid
Mormyrus longirostris
Freshwater29.5 in (75 cm) · 185 gal (700 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)
Elegant algae goby
Stiphodon elegans
Freshwater2 in (5 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)
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)
Embaloh Borneo sucker
Gastromyzon embalohensis
Freshwater2 in (5 cm) · 20 gal (75 L)72–79°F (22–26°C)
Emperor cichlid
Boulengerochromis microlepis
Freshwater31.5 in (80 cm) · 528 gal (2,000 L)75–81°F (24–27°C)
Emperor round-face barb
Cyprinion semiplotum
Freshwater23.6 in (60 cm) · 396 gal (1,500 L)61–77°F (16–25°C)
Eyespot gourami
Parasphaerichthys ocellatus
Freshwater1.4 in (3.5 cm) · 12 gal (45 L)64–77°F (18–25°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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